Home / 391,127.15-586,685.78-124,884.29

Finding the Fourth Proportional to 391,127.15, 586,685.78 and 124,884.29

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Solution

The fourth proportional to 391,127.15, 586,685.78 and 124,884.29 is: 187,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,127.15 : 586,685.78 = 124,884.29 : x
  2. Step 2: Convert to fraction form
    391,127.15/586,685.78 = 124,884.29/x
  3. Step 3: Cross multiply
    391,127.15x = 586,685.78 × 124,884.29
  4. Step 4: Simplify right side
    391,127.15x = 73,267,838,399.01
  5. Step 5: Solve for x
    x = 73,267,838,399.01/391,127.15
  6. Step 6: Final answer
    x = 187,324.86

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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.