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Finding the Fourth Proportional to 486,001.10, 729,001.65 and 423,793.10

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Solution

The fourth proportional to 486,001.10, 729,001.65 and 423,793.10 is: 635,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,001.10 : 729,001.65 = 423,793.10 : x
  2. Step 2: Convert to fraction form
    486,001.10/729,001.65 = 423,793.10/x
  3. Step 3: Cross multiply
    486,001.10x = 729,001.65 × 423,793.10
  4. Step 4: Simplify right side
    486,001.10x = 308,945,869,158.62
  5. Step 5: Solve for x
    x = 308,945,869,158.62/486,001.10
  6. Step 6: Final answer
    x = 635,689.65

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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.