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Finding the Fourth Proportional to 631,369.66, 871,275.80 and 344,891.02

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Solution

The fourth proportional to 631,369.66, 871,275.80 and 344,891.02 is: 475,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,369.66 : 871,275.80 = 344,891.02 : x
  2. Step 2: Convert to fraction form
    631,369.66/871,275.80 = 344,891.02/x
  3. Step 3: Cross multiply
    631,369.66x = 871,275.80 × 344,891.02
  4. Step 4: Simplify right side
    631,369.66x = 300,495,199,363.32
  5. Step 5: Solve for x
    x = 300,495,199,363.32/631,369.66
  6. Step 6: Final answer
    x = 475,941.78

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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.