Finding the Fourth Proportional to 1,640,012.19, 2,263,220.10 and 914,841.06
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Solution
The fourth proportional to 1,640,012.19, 2,263,220.10 and 914,841.06 is: 1,262,482.49
Step by Step Solution
- Step 1: Write the proportion equation
1,640,012.19 : 2,263,220.10 = 914,841.06 : x - Step 2: Convert to fraction form
1,640,012.19/2,263,220.10 = 914,841.06/x - Step 3: Cross multiply
1,640,012.19x = 2,263,220.10 × 914,841.06 - Step 4: Simplify right side
1,640,012.19x = 2,070,486,675,297.31 - Step 5: Solve for x
x = 2,070,486,675,297.31/1,640,012.19 - Step 6: Final answer
x = 1,262,482.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.