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Finding the Fourth Proportional to 631,167.40, 871,017.94 and 344,695.92

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Solution

The fourth proportional to 631,167.40, 871,017.94 and 344,695.92 is: 475,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,167.40 : 871,017.94 = 344,695.92 : x
  2. Step 2: Convert to fraction form
    631,167.40/871,017.94 = 344,695.92/x
  3. Step 3: Cross multiply
    631,167.40x = 871,017.94 × 344,695.92
  4. Step 4: Simplify right side
    631,167.40x = 300,236,330,164.81
  5. Step 5: Solve for x
    x = 300,236,330,164.81/631,167.40
  6. Step 6: Final answer
    x = 475,684.15

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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.