From Cambridge dictionary:

> align: to be the same or similar, or to agree with each other; to make two things do this

But I get it, you are using it as correlation.

Still, if gdp per capita average is 130 and median is 100 (ratio is 1.3) there is a 30% difference. This is exactly why, even if they correlate they are not very similar aka they "do not agree with each other" as per the definition above. With your definition they "align".good enough for me. It aligns even better (more closely) to the median.