Home / 728,086.20-1,092,129.30-254,722.20

Finding the Fourth Proportional to 728,086.20, 1,092,129.30 and 254,722.20

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Solution

The fourth proportional to 728,086.20, 1,092,129.30 and 254,722.20 is: 382,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,086.20 : 1,092,129.30 = 254,722.20 : x
  2. Step 2: Convert to fraction form
    728,086.20/1,092,129.30 = 254,722.20/x
  3. Step 3: Cross multiply
    728,086.20x = 1,092,129.30 × 254,722.20
  4. Step 4: Simplify right side
    728,086.20x = 278,189,577,980.46
  5. Step 5: Solve for x
    x = 278,189,577,980.46/728,086.20
  6. Step 6: Final answer
    x = 382,083.30

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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.