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Finding the Fourth Proportional to 488,276.10, 732,414.15 and 320,861.25

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Solution

The fourth proportional to 488,276.10, 732,414.15 and 320,861.25 is: 481,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,276.10 : 732,414.15 = 320,861.25 : x
  2. Step 2: Convert to fraction form
    488,276.10/732,414.15 = 320,861.25/x
  3. Step 3: Cross multiply
    488,276.10x = 732,414.15 × 320,861.25
  4. Step 4: Simplify right side
    488,276.10x = 235,003,319,686.69
  5. Step 5: Solve for x
    x = 235,003,319,686.69/488,276.10
  6. Step 6: Final answer
    x = 481,291.88

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Similar ratio
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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.