Home / 728,951.40-1,092,951.90-654,301.80

Finding the Fourth Proportional to 728,951.40, 1,092,951.90 and 654,301.80

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Solution

The fourth proportional to 728,951.40, 1,092,951.90 and 654,301.80 is: 981,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,951.40 : 1,092,951.90 = 654,301.80 : x
  2. Step 2: Convert to fraction form
    728,951.40/1,092,951.90 = 654,301.80/x
  3. Step 3: Cross multiply
    728,951.40x = 1,092,951.90 × 654,301.80
  4. Step 4: Simplify right side
    728,951.40x = 715,120,395,483.42
  5. Step 5: Solve for x
    x = 715,120,395,483.42/728,951.40
  6. Step 6: Final answer
    x = 981,026.16

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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.