Home / 391,023.43-586,545.33-124,783.58

Finding the Fourth Proportional to 391,023.43, 586,545.33 and 124,783.58

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Solution

The fourth proportional to 391,023.43, 586,545.33 and 124,783.58 is: 187,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,023.43 : 586,545.33 = 124,783.58 : x
  2. Step 2: Convert to fraction form
    391,023.43/586,545.33 = 124,783.58/x
  3. Step 3: Cross multiply
    391,023.43x = 586,545.33 × 124,783.58
  4. Step 4: Simplify right side
    391,023.43x = 73,191,226,109.68
  5. Step 5: Solve for x
    x = 73,191,226,109.68/391,023.43
  6. Step 6: Final answer
    x = 187,178.62

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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.