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Finding the Fourth Proportional to 394,593.80, 591,890.70 and 268,622.60

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Solution

The fourth proportional to 394,593.80, 591,890.70 and 268,622.60 is: 402,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,593.80 : 591,890.70 = 268,622.60 : x
  2. Step 2: Convert to fraction form
    394,593.80/591,890.70 = 268,622.60/x
  3. Step 3: Cross multiply
    394,593.80x = 591,890.70 × 268,622.60
  4. Step 4: Simplify right side
    394,593.80x = 158,995,218,749.82
  5. Step 5: Solve for x
    x = 158,995,218,749.82/394,593.80
  6. Step 6: Final answer
    x = 402,933.90

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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.