Home / 728,717.60-1,092,817.20-329,549.60

Finding the Fourth Proportional to 728,717.60, 1,092,817.20 and 329,549.60

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Solution

The fourth proportional to 728,717.60, 1,092,817.20 and 329,549.60 is: 494,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,717.60 : 1,092,817.20 = 329,549.60 : x
  2. Step 2: Convert to fraction form
    728,717.60/1,092,817.20 = 329,549.60/x
  3. Step 3: Cross multiply
    728,717.60x = 1,092,817.20 × 329,549.60
  4. Step 4: Simplify right side
    728,717.60x = 360,137,471,133.12
  5. Step 5: Solve for x
    x = 360,137,471,133.12/728,717.60
  6. Step 6: Final answer
    x = 494,207.18

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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.