Finding the Fourth Proportional to 782,397.99, 1,079,877.33 and 476,575.20
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Solution
The fourth proportional to 782,397.99, 1,079,877.33 and 476,575.20 is: 657,776.17
Step by Step Solution
- Step 1: Write the proportion equation
782,397.99 : 1,079,877.33 = 476,575.20 : x - Step 2: Convert to fraction form
782,397.99/1,079,877.33 = 476,575.20/x - Step 3: Cross multiply
782,397.99x = 1,079,877.33 × 476,575.20 - Step 4: Simplify right side
782,397.99x = 514,642,754,520.22 - Step 5: Solve for x
x = 514,642,754,520.22/782,397.99 - Step 6: Final answer
x = 657,776.17
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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.