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Finding the Fourth Proportional to 631,353.16, 871,252.86 and 344,874.52

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Solution

The fourth proportional to 631,353.16, 871,252.86 and 344,874.52 is: 475,918.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,353.16 : 871,252.86 = 344,874.52 : x
  2. Step 2: Convert to fraction form
    631,353.16/871,252.86 = 344,874.52/x
  3. Step 3: Cross multiply
    631,353.16x = 871,252.86 × 344,874.52
  4. Step 4: Simplify right side
    631,353.16x = 300,472,911,891.13
  5. Step 5: Solve for x
    x = 300,472,911,891.13/631,353.16
  6. Step 6: Final answer
    x = 475,918.92

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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.