Home / 439,728.70-659,593.05-329,136.70

Finding the Fourth Proportional to 439,728.70, 659,593.05 and 329,136.70

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Solution

The fourth proportional to 439,728.70, 659,593.05 and 329,136.70 is: 493,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,728.70 : 659,593.05 = 329,136.70 : x
  2. Step 2: Convert to fraction form
    439,728.70/659,593.05 = 329,136.70/x
  3. Step 3: Cross multiply
    439,728.70x = 659,593.05 × 329,136.70
  4. Step 4: Simplify right side
    439,728.70x = 217,096,279,819.94
  5. Step 5: Solve for x
    x = 217,096,279,819.94/439,728.70
  6. Step 6: Final answer
    x = 493,705.05

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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.