Finding the Fourth Proportional to 1,512,732.80, 2,087,669.92 and 868,361.60
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Solution
The fourth proportional to 1,512,732.80, 2,087,669.92 and 868,361.60 is: 1,198,395.64
Step by Step Solution
- Step 1: Write the proportion equation
1,512,732.80 : 2,087,669.92 = 868,361.60 : x - Step 2: Convert to fraction form
1,512,732.80/2,087,669.92 = 868,361.60/x - Step 3: Cross multiply
1,512,732.80x = 2,087,669.92 × 868,361.60 - Step 4: Simplify right side
1,512,732.80x = 1,812,852,392,003.07 - Step 5: Solve for x
x = 1,812,852,392,003.07/1,512,732.80 - Step 6: Final answer
x = 1,198,395.64
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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.