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Finding the Fourth Proportional to 722,375.71, 1,083,574.15 and 343,335.12

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Solution

The fourth proportional to 722,375.71, 1,083,574.15 and 343,335.12 is: 515,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,375.71 : 1,083,574.15 = 343,335.12 : x
  2. Step 2: Convert to fraction form
    722,375.71/1,083,574.15 = 343,335.12/x
  3. Step 3: Cross multiply
    722,375.71x = 1,083,574.15 × 343,335.12
  4. Step 4: Simplify right side
    722,375.71x = 372,029,057,251.88
  5. Step 5: Solve for x
    x = 372,029,057,251.88/722,375.71
  6. Step 6: Final answer
    x = 515,007.71

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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.