Home / 387,354.24-582,120-229,605.12

Finding the Fourth Proportional to 387,354.24, 582,120 and 229,605.12

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Solution

The fourth proportional to 387,354.24, 582,120 and 229,605.12 is: 345,052.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,354.24 : 582,120 = 229,605.12 : x
  2. Step 2: Convert to fraction form
    387,354.24/582,120 = 229,605.12/x
  3. Step 3: Cross multiply
    387,354.24x = 582,120 × 229,605.12
  4. Step 4: Simplify right side
    387,354.24x = 133,657,732,454.40
  5. Step 5: Solve for x
    x = 133,657,732,454.40/387,354.24
  6. Step 6: Final answer
    x = 345,052.97

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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.