Home / 664,531.20-996,796.80-215,251.20

Finding the Fourth Proportional to 664,531.20, 996,796.80 and 215,251.20

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Solution

The fourth proportional to 664,531.20, 996,796.80 and 215,251.20 is: 322,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,531.20 : 996,796.80 = 215,251.20 : x
  2. Step 2: Convert to fraction form
    664,531.20/996,796.80 = 215,251.20/x
  3. Step 3: Cross multiply
    664,531.20x = 996,796.80 × 215,251.20
  4. Step 4: Simplify right side
    664,531.20x = 214,561,707,356.16
  5. Step 5: Solve for x
    x = 214,561,707,356.16/664,531.20
  6. Step 6: Final answer
    x = 322,876.80

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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.