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Finding the Fourth Proportional to 631,302.72, 871,158.96 and 344,764.68

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Solution

The fourth proportional to 631,302.72, 871,158.96 and 344,764.68 is: 475,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,302.72 : 871,158.96 = 344,764.68 : x
  2. Step 2: Convert to fraction form
    631,302.72/871,158.96 = 344,764.68/x
  3. Step 3: Cross multiply
    631,302.72x = 871,158.96 × 344,764.68
  4. Step 4: Simplify right side
    631,302.72x = 300,344,840,073.53
  5. Step 5: Solve for x
    x = 300,344,840,073.53/631,302.72
  6. Step 6: Final answer
    x = 475,754.07

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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.