Home / 384,539.57-576,430.26-135,046.61

Finding the Fourth Proportional to 384,539.57, 576,430.26 and 135,046.61

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Solution

The fourth proportional to 384,539.57, 576,430.26 and 135,046.61 is: 202,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,539.57 : 576,430.26 = 135,046.61 : x
  2. Step 2: Convert to fraction form
    384,539.57/576,430.26 = 135,046.61/x
  3. Step 3: Cross multiply
    384,539.57x = 576,430.26 × 135,046.61
  4. Step 4: Simplify right side
    384,539.57x = 77,844,949,632.27
  5. Step 5: Solve for x
    x = 77,844,949,632.27/384,539.57
  6. Step 6: Final answer
    x = 202,436.78

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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.