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Finding the Fourth Proportional to 631,168.90, 871,016.27 and 344,688.98

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Solution

The fourth proportional to 631,168.90, 871,016.27 and 344,688.98 is: 475,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,168.90 : 871,016.27 = 344,688.98 : x
  2. Step 2: Convert to fraction form
    631,168.90/871,016.27 = 344,688.98/x
  3. Step 3: Cross multiply
    631,168.90x = 871,016.27 × 344,688.98
  4. Step 4: Simplify right side
    631,168.90x = 300,229,703,591.18
  5. Step 5: Solve for x
    x = 300,229,703,591.18/631,168.90
  6. Step 6: Final answer
    x = 475,672.53

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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.