Home / 728,726.40-1,092,614.40-654,076.80

Finding the Fourth Proportional to 728,726.40, 1,092,614.40 and 654,076.80

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Solution

The fourth proportional to 728,726.40, 1,092,614.40 and 654,076.80 is: 980,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,726.40 : 1,092,614.40 = 654,076.80 : x
  2. Step 2: Convert to fraction form
    728,726.40/1,092,614.40 = 654,076.80/x
  3. Step 3: Cross multiply
    728,726.40x = 1,092,614.40 × 654,076.80
  4. Step 4: Simplify right side
    728,726.40x = 714,653,730,385.92
  5. Step 5: Solve for x
    x = 714,653,730,385.92/728,726.40
  6. Step 6: Final answer
    x = 980,688.68

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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.