Home / 439,728.20-659,592.30-329,136.20

Finding the Fourth Proportional to 439,728.20, 659,592.30 and 329,136.20

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Solution

The fourth proportional to 439,728.20, 659,592.30 and 329,136.20 is: 493,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,728.20 : 659,592.30 = 329,136.20 : x
  2. Step 2: Convert to fraction form
    439,728.20/659,592.30 = 329,136.20/x
  3. Step 3: Cross multiply
    439,728.20x = 659,592.30 × 329,136.20
  4. Step 4: Simplify right side
    439,728.20x = 217,095,703,171.26
  5. Step 5: Solve for x
    x = 217,095,703,171.26/439,728.20
  6. Step 6: Final answer
    x = 493,704.30

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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.