Home / 422,449.54-582,980.25-231,470.18

Finding the Fourth Proportional to 422,449.54, 582,980.25 and 231,470.18

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Solution

The fourth proportional to 422,449.54, 582,980.25 and 231,470.18 is: 319,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,449.54 : 582,980.25 = 231,470.18 : x
  2. Step 2: Convert to fraction form
    422,449.54/582,980.25 = 231,470.18/x
  3. Step 3: Cross multiply
    422,449.54x = 582,980.25 × 231,470.18
  4. Step 4: Simplify right side
    422,449.54x = 134,942,543,403.95
  5. Step 5: Solve for x
    x = 134,942,543,403.95/422,449.54
  6. Step 6: Final answer
    x = 319,428.79

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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.