Finding the Fourth Proportional to 625,201.20, 862,778.50 and 338,721.28
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Solution
The fourth proportional to 625,201.20, 862,778.50 and 338,721.28 is: 467,435.82
Step by Step Solution
- Step 1: Write the proportion equation
625,201.20 : 862,778.50 = 338,721.28 : x - Step 2: Convert to fraction form
625,201.20/862,778.50 = 338,721.28/x - Step 3: Cross multiply
625,201.20x = 862,778.50 × 338,721.28 - Step 4: Simplify right side
625,201.20x = 292,241,437,876.48 - Step 5: Solve for x
x = 292,241,437,876.48/625,201.20 - Step 6: Final answer
x = 467,435.82
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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.