relative vs proportionate

relative is a noun but proportionate is not a noun.

Word	Noun	Adjective	Verb	Adverb
relative	Yes	Yes	No	No
proportionate	No	Yes	No	No

relative (noun)	proportionate (noun)
an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
a person related by blood or marriage

relative (adjective)	proportionate (adjective)
estimated by comparison; not absolute or complete	being in due proportion
properly related in size or degree or other measurable characteristics; usually followed by `to'	exhibiting equivalence or correspondence among constituents of an entity or between different entities
	agreeing in amount, magnitude, or degree