Home / 728,200.20-1,092,105.90-222,760.20

Finding the Fourth Proportional to 728,200.20, 1,092,105.90 and 222,760.20

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Solution

The fourth proportional to 728,200.20, 1,092,105.90 and 222,760.20 is: 334,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,200.20 : 1,092,105.90 = 222,760.20 : x
  2. Step 2: Convert to fraction form
    728,200.20/1,092,105.90 = 222,760.20/x
  3. Step 3: Cross multiply
    728,200.20x = 1,092,105.90 × 222,760.20
  4. Step 4: Simplify right side
    728,200.20x = 243,277,728,705.18
  5. Step 5: Solve for x
    x = 243,277,728,705.18/728,200.20
  6. Step 6: Final answer
    x = 334,080.83

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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.