Home / 486,132.30-729,198.45-458,576.10

Finding the Fourth Proportional to 486,132.30, 729,198.45 and 458,576.10

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Solution

The fourth proportional to 486,132.30, 729,198.45 and 458,576.10 is: 687,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,132.30 : 729,198.45 = 458,576.10 : x
  2. Step 2: Convert to fraction form
    486,132.30/729,198.45 = 458,576.10/x
  3. Step 3: Cross multiply
    486,132.30x = 729,198.45 × 458,576.10
  4. Step 4: Simplify right side
    486,132.30x = 334,392,981,327.05
  5. Step 5: Solve for x
    x = 334,392,981,327.05/486,132.30
  6. Step 6: Final answer
    x = 687,864.15

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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.