Home / 394,456.32-591,626.16-145,080

Finding the Fourth Proportional to 394,456.32, 591,626.16 and 145,080

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Solution

The fourth proportional to 394,456.32, 591,626.16 and 145,080 is: 217,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,456.32 : 591,626.16 = 145,080 : x
  2. Step 2: Convert to fraction form
    394,456.32/591,626.16 = 145,080/x
  3. Step 3: Cross multiply
    394,456.32x = 591,626.16 × 145,080
  4. Step 4: Simplify right side
    394,456.32x = 85,833,123,292.80
  5. Step 5: Solve for x
    x = 85,833,123,292.80/394,456.32
  6. Step 6: Final answer
    x = 217,598.55

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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.