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Finding the Fourth Proportional to 437,566.70, 656,350.05 and 408,042.20

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Solution

The fourth proportional to 437,566.70, 656,350.05 and 408,042.20 is: 612,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,566.70 : 656,350.05 = 408,042.20 : x
  2. Step 2: Convert to fraction form
    437,566.70/656,350.05 = 408,042.20/x
  3. Step 3: Cross multiply
    437,566.70x = 656,350.05 × 408,042.20
  4. Step 4: Simplify right side
    437,566.70x = 267,818,518,372.11
  5. Step 5: Solve for x
    x = 267,818,518,372.11/437,566.70
  6. Step 6: Final answer
    x = 612,063.30

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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.