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Finding the Fourth Proportional to 688,449.62, 950,057.40 and 382,575.80

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Solution

The fourth proportional to 688,449.62, 950,057.40 and 382,575.80 is: 527,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,449.62 : 950,057.40 = 382,575.80 : x
  2. Step 2: Convert to fraction form
    688,449.62/950,057.40 = 382,575.80/x
  3. Step 3: Cross multiply
    688,449.62x = 950,057.40 × 382,575.80
  4. Step 4: Simplify right side
    688,449.62x = 363,468,969,850.92
  5. Step 5: Solve for x
    x = 363,468,969,850.92/688,449.62
  6. Step 6: Final answer
    x = 527,952.89

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.