Home / 499,246.20-748,869.30-219,310.20

Finding the Fourth Proportional to 499,246.20, 748,869.30 and 219,310.20

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Solution

The fourth proportional to 499,246.20, 748,869.30 and 219,310.20 is: 328,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,246.20 : 748,869.30 = 219,310.20 : x
  2. Step 2: Convert to fraction form
    499,246.20/748,869.30 = 219,310.20/x
  3. Step 3: Cross multiply
    499,246.20x = 748,869.30 × 219,310.20
  4. Step 4: Simplify right side
    499,246.20x = 164,234,675,956.86
  5. Step 5: Solve for x
    x = 164,234,675,956.86/499,246.20
  6. Step 6: Final answer
    x = 328,965.30

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Double scale
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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.