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Finding the Fourth Proportional to 729,760.80, 1,092,016.80 and 493,564.80

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Solution

The fourth proportional to 729,760.80, 1,092,016.80 and 493,564.80 is: 738,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,760.80 : 1,092,016.80 = 493,564.80 : x
  2. Step 2: Convert to fraction form
    729,760.80/1,092,016.80 = 493,564.80/x
  3. Step 3: Cross multiply
    729,760.80x = 1,092,016.80 × 493,564.80
  4. Step 4: Simplify right side
    729,760.80x = 538,981,053,488.64
  5. Step 5: Solve for x
    x = 538,981,053,488.64/729,760.80
  6. Step 6: Final answer
    x = 738,572.22

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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.