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Finding the Fourth Proportional to 499,522.60, 749,283.90 and 487,712.80

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Solution

The fourth proportional to 499,522.60, 749,283.90 and 487,712.80 is: 731,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,522.60 : 749,283.90 = 487,712.80 : x
  2. Step 2: Convert to fraction form
    499,522.60/749,283.90 = 487,712.80/x
  3. Step 3: Cross multiply
    499,522.60x = 749,283.90 × 487,712.80
  4. Step 4: Simplify right side
    499,522.60x = 365,435,348,863.92
  5. Step 5: Solve for x
    x = 365,435,348,863.92/499,522.60
  6. Step 6: Final answer
    x = 731,569.20

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Similar ratio
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1.5x scale

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.