Home / 728,475.40-1,092,713.10-255,003.40

Finding the Fourth Proportional to 728,475.40, 1,092,713.10 and 255,003.40

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Solution

The fourth proportional to 728,475.40, 1,092,713.10 and 255,003.40 is: 382,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,475.40 : 1,092,713.10 = 255,003.40 : x
  2. Step 2: Convert to fraction form
    728,475.40/1,092,713.10 = 255,003.40/x
  3. Step 3: Cross multiply
    728,475.40x = 1,092,713.10 × 255,003.40
  4. Step 4: Simplify right side
    728,475.40x = 278,645,555,724.54
  5. Step 5: Solve for x
    x = 278,645,555,724.54/728,475.40
  6. Step 6: Final answer
    x = 382,505.10

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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.