Home / 391,928.48-587,829.78-107,552.61

Finding the Fourth Proportional to 391,928.48, 587,829.78 and 107,552.61

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Solution

The fourth proportional to 391,928.48, 587,829.78 and 107,552.61 is: 161,311.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,928.48 : 587,829.78 = 107,552.61 : x
  2. Step 2: Convert to fraction form
    391,928.48/587,829.78 = 107,552.61/x
  3. Step 3: Cross multiply
    391,928.48x = 587,829.78 × 107,552.61
  4. Step 4: Simplify right side
    391,928.48x = 63,222,627,074.73
  5. Step 5: Solve for x
    x = 63,222,627,074.73/391,928.48
  6. Step 6: Final answer
    x = 161,311.65

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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.