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Finding the Fourth Proportional to 499,366.20, 749,049.30 and 331,404.60

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Solution

The fourth proportional to 499,366.20, 749,049.30 and 331,404.60 is: 497,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,366.20 : 749,049.30 = 331,404.60 : x
  2. Step 2: Convert to fraction form
    499,366.20/749,049.30 = 331,404.60/x
  3. Step 3: Cross multiply
    499,366.20x = 749,049.30 × 331,404.60
  4. Step 4: Simplify right side
    499,366.20x = 248,238,383,646.78
  5. Step 5: Solve for x
    x = 248,238,383,646.78/499,366.20
  6. Step 6: Final answer
    x = 497,106.90

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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.