Finding the Fourth Proportional to 438,432.10, 657,648.15 and 413,937.70
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Solution
The fourth proportional to 438,432.10, 657,648.15 and 413,937.70 is: 620,906.55
Step by Step Solution
- Step 1: Write the proportion equation
438,432.10 : 657,648.15 = 413,937.70 : x - Step 2: Convert to fraction form
438,432.10/657,648.15 = 413,937.70/x - Step 3: Cross multiply
438,432.10x = 657,648.15 × 413,937.70 - Step 4: Simplify right side
438,432.10x = 272,225,362,620.26 - Step 5: Solve for x
x = 272,225,362,620.26/438,432.10 - Step 6: Final answer
x = 620,906.55
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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.