Home / 380,939.40-571,456.33-124,683.95

Finding the Fourth Proportional to 380,939.40, 571,456.33 and 124,683.95

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Solution

The fourth proportional to 380,939.40, 571,456.33 and 124,683.95 is: 187,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,939.40 : 571,456.33 = 124,683.95 : x
  2. Step 2: Convert to fraction form
    380,939.40/571,456.33 = 124,683.95/x
  3. Step 3: Cross multiply
    380,939.40x = 571,456.33 × 124,683.95
  4. Step 4: Simplify right side
    380,939.40x = 71,251,433,593.83
  5. Step 5: Solve for x
    x = 71,251,433,593.83/380,939.40
  6. Step 6: Final answer
    x = 187,041.39

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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.