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Finding the Fourth Proportional to 631,273.97, 871,162.59 and 344,793.98

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Solution

The fourth proportional to 631,273.97, 871,162.59 and 344,793.98 is: 475,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,273.97 : 871,162.59 = 344,793.98 : x
  2. Step 2: Convert to fraction form
    631,273.97/871,162.59 = 344,793.98/x
  3. Step 3: Cross multiply
    631,273.97x = 871,162.59 × 344,793.98
  4. Step 4: Simplify right side
    631,273.97x = 300,371,620,104.09
  5. Step 5: Solve for x
    x = 300,371,620,104.09/631,273.97
  6. Step 6: Final answer
    x = 475,818.16

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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.