Home / 728,121.31-1,092,181.38-195,642.34

Finding the Fourth Proportional to 728,121.31, 1,092,181.38 and 195,642.34

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Solution

The fourth proportional to 728,121.31, 1,092,181.38 and 195,642.34 is: 293,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,121.31 : 1,092,181.38 = 195,642.34 : x
  2. Step 2: Convert to fraction form
    728,121.31/1,092,181.38 = 195,642.34/x
  3. Step 3: Cross multiply
    728,121.31x = 1,092,181.38 × 195,642.34
  4. Step 4: Simplify right side
    728,121.31x = 213,676,915,426.72
  5. Step 5: Solve for x
    x = 213,676,915,426.72/728,121.31
  6. Step 6: Final answer
    x = 293,463.35

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Double scale
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Similar ratio
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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.