Finding the Fourth Proportional to 437,610.20, 656,415.30 and 408,085.70
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Solution
The fourth proportional to 437,610.20, 656,415.30 and 408,085.70 is: 612,128.55
Step by Step Solution
- Step 1: Write the proportion equation
437,610.20 : 656,415.30 = 408,085.70 : x - Step 2: Convert to fraction form
437,610.20/656,415.30 = 408,085.70/x - Step 3: Cross multiply
437,610.20x = 656,415.30 × 408,085.70 - Step 4: Simplify right side
437,610.20x = 267,873,697,191.21 - Step 5: Solve for x
x = 267,873,697,191.21/437,610.20 - Step 6: Final answer
x = 612,128.55
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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.