Home / 728,278.88-1,092,418.31-229,642.88

Finding the Fourth Proportional to 728,278.88, 1,092,418.31 and 229,642.88

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Solution

The fourth proportional to 728,278.88, 1,092,418.31 and 229,642.88 is: 344,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,278.88 : 1,092,418.31 = 229,642.88 : x
  2. Step 2: Convert to fraction form
    728,278.88/1,092,418.31 = 229,642.88/x
  3. Step 3: Cross multiply
    728,278.88x = 1,092,418.31 × 229,642.88
  4. Step 4: Simplify right side
    728,278.88x = 250,866,081,985.15
  5. Step 5: Solve for x
    x = 250,866,081,985.15/728,278.88
  6. Step 6: Final answer
    x = 344,464.31

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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.