Home / 394,605.02-591,912.99-128,366.93

Finding the Fourth Proportional to 394,605.02, 591,912.99 and 128,366.93

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Solution

The fourth proportional to 394,605.02, 591,912.99 and 128,366.93 is: 192,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,605.02 : 591,912.99 = 128,366.93 : x
  2. Step 2: Convert to fraction form
    394,605.02/591,912.99 = 128,366.93/x
  3. Step 3: Cross multiply
    394,605.02x = 591,912.99 × 128,366.93
  4. Step 4: Simplify right side
    394,605.02x = 75,982,050,393.86
  5. Step 5: Solve for x
    x = 75,982,050,393.86/394,605.02
  6. Step 6: Final answer
    x = 192,552.17

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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.