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Finding the Fourth Proportional to 661,522.60, 991,263.30 and 492,248.80

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Solution

The fourth proportional to 661,522.60, 991,263.30 and 492,248.80 is: 737,613.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,522.60 : 991,263.30 = 492,248.80 : x
  2. Step 2: Convert to fraction form
    661,522.60/991,263.30 = 492,248.80/x
  3. Step 3: Cross multiply
    661,522.60x = 991,263.30 × 492,248.80
  4. Step 4: Simplify right side
    661,522.60x = 487,948,169,909.04
  5. Step 5: Solve for x
    x = 487,948,169,909.04/661,522.60
  6. Step 6: Final answer
    x = 737,613.76

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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.