Home / 728,045.10-1,092,067.65-254,778.30

Finding the Fourth Proportional to 728,045.10, 1,092,067.65 and 254,778.30

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Solution

The fourth proportional to 728,045.10, 1,092,067.65 and 254,778.30 is: 382,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,045.10 : 1,092,067.65 = 254,778.30 : x
  2. Step 2: Convert to fraction form
    728,045.10/1,092,067.65 = 254,778.30/x
  3. Step 3: Cross multiply
    728,045.10x = 1,092,067.65 × 254,778.30
  4. Step 4: Simplify right side
    728,045.10x = 278,235,139,352.00
  5. Step 5: Solve for x
    x = 278,235,139,352.00/728,045.10
  6. Step 6: Final answer
    x = 382,167.45

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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.