Home / 422,309.53-582,787.29-231,329.80

Finding the Fourth Proportional to 422,309.53, 582,787.29 and 231,329.80

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Solution

The fourth proportional to 422,309.53, 582,787.29 and 231,329.80 is: 319,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,309.53 : 582,787.29 = 231,329.80 : x
  2. Step 2: Convert to fraction form
    422,309.53/582,787.29 = 231,329.80/x
  3. Step 3: Cross multiply
    422,309.53x = 582,787.29 × 231,329.80
  4. Step 4: Simplify right side
    422,309.53x = 134,816,067,238.24
  5. Step 5: Solve for x
    x = 134,816,067,238.24/422,309.53
  6. Step 6: Final answer
    x = 319,235.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.