Finding the Fourth Proportional to 687,617.43, 1,032,104.98 and 516,243.09
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Solution
The fourth proportional to 687,617.43, 1,032,104.98 and 516,243.09 is: 774,874.28
Step by Step Solution
- Step 1: Write the proportion equation
687,617.43 : 1,032,104.98 = 516,243.09 : x - Step 2: Convert to fraction form
687,617.43/1,032,104.98 = 516,243.09/x - Step 3: Cross multiply
687,617.43x = 1,032,104.98 × 516,243.09 - Step 4: Simplify right side
687,617.43x = 532,817,059,704.73 - Step 5: Solve for x
x = 532,817,059,704.73/687,617.43 - Step 6: Final answer
x = 774,874.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.