Home / 728,285.60-1,092,169.20-329,117.60

Finding the Fourth Proportional to 728,285.60, 1,092,169.20 and 329,117.60

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Solution

The fourth proportional to 728,285.60, 1,092,169.20 and 329,117.60 is: 493,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,285.60 : 1,092,169.20 = 329,117.60 : x
  2. Step 2: Convert to fraction form
    728,285.60/1,092,169.20 = 329,117.60/x
  3. Step 3: Cross multiply
    728,285.60x = 1,092,169.20 × 329,117.60
  4. Step 4: Simplify right side
    728,285.60x = 359,452,105,897.92
  5. Step 5: Solve for x
    x = 359,452,105,897.92/728,285.60
  6. Step 6: Final answer
    x = 493,559.27

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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.