Home / 728,088.20-1,092,132.30-222,648.20

Finding the Fourth Proportional to 728,088.20, 1,092,132.30 and 222,648.20

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Solution

The fourth proportional to 728,088.20, 1,092,132.30 and 222,648.20 is: 333,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,088.20 : 1,092,132.30 = 222,648.20 : x
  2. Step 2: Convert to fraction form
    728,088.20/1,092,132.30 = 222,648.20/x
  3. Step 3: Cross multiply
    728,088.20x = 1,092,132.30 × 222,648.20
  4. Step 4: Simplify right side
    728,088.20x = 243,161,290,756.86
  5. Step 5: Solve for x
    x = 243,161,290,756.86/728,088.20
  6. Step 6: Final answer
    x = 333,972.30

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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.