Home / 683,430.20-1,025,145.30-329,136.20

Finding the Fourth Proportional to 683,430.20, 1,025,145.30 and 329,136.20

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Solution

The fourth proportional to 683,430.20, 1,025,145.30 and 329,136.20 is: 493,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,430.20 : 1,025,145.30 = 329,136.20 : x
  2. Step 2: Convert to fraction form
    683,430.20/1,025,145.30 = 329,136.20/x
  3. Step 3: Cross multiply
    683,430.20x = 1,025,145.30 × 329,136.20
  4. Step 4: Simplify right side
    683,430.20x = 337,412,428,489.86
  5. Step 5: Solve for x
    x = 337,412,428,489.86/683,430.20
  6. Step 6: Final answer
    x = 493,704.30

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Half scale
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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.