Home / 394,540.80-591,811.20-268,569.60

Finding the Fourth Proportional to 394,540.80, 591,811.20 and 268,569.60

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Solution

The fourth proportional to 394,540.80, 591,811.20 and 268,569.60 is: 402,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,540.80 : 591,811.20 = 268,569.60 : x
  2. Step 2: Convert to fraction form
    394,540.80/591,811.20 = 268,569.60/x
  3. Step 3: Cross multiply
    394,540.80x = 591,811.20 × 268,569.60
  4. Step 4: Simplify right side
    394,540.80x = 158,942,497,259.52
  5. Step 5: Solve for x
    x = 158,942,497,259.52/394,540.80
  6. Step 6: Final answer
    x = 402,854.40

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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.