Home / 394,487.53-591,748.92-120,913.57

Finding the Fourth Proportional to 394,487.53, 591,748.92 and 120,913.57

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Solution

The fourth proportional to 394,487.53, 591,748.92 and 120,913.57 is: 181,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,487.53 : 591,748.92 = 120,913.57 : x
  2. Step 2: Convert to fraction form
    394,487.53/591,748.92 = 120,913.57/x
  3. Step 3: Cross multiply
    394,487.53x = 591,748.92 × 120,913.57
  4. Step 4: Simplify right side
    394,487.53x = 71,550,474,460.84
  5. Step 5: Solve for x
    x = 71,550,474,460.84/394,487.53
  6. Step 6: Final answer
    x = 181,375.76

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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.