If I understand correctly, Table 1 and Table 2 have a relationship set up. You want a column value from Table 1 to show up as a column in Table 2. Is that right?
What kind of relationship? What granularity? Is it a One-to-Many? If so, which table is on the ONE side? If Table 1 is on the ONE side (or if you have a One-to-One relationship) then you can use this DAX function:
My Value from Table 1 = RELATED ( 'Table 1' [My original Column] )
Please mark answers a Solutions if they solve your issue, or give Kudos if they helped in any way.