Home / 728,049.20-1,092,073.80-372,945.20

Finding the Fourth Proportional to 728,049.20, 1,092,073.80 and 372,945.20

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Solution

The fourth proportional to 728,049.20, 1,092,073.80 and 372,945.20 is: 559,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,049.20 : 1,092,073.80 = 372,945.20 : x
  2. Step 2: Convert to fraction form
    728,049.20/1,092,073.80 = 372,945.20/x
  3. Step 3: Cross multiply
    728,049.20x = 1,092,073.80 × 372,945.20
  4. Step 4: Simplify right side
    728,049.20x = 407,283,681,755.76
  5. Step 5: Solve for x
    x = 407,283,681,755.76/728,049.20
  6. Step 6: Final answer
    x = 559,417.80

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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.