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Finding the Fourth Proportional to 631,168.65, 871,019.67 and 344,697.17

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Solution

The fourth proportional to 631,168.65, 871,019.67 and 344,697.17 is: 475,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,168.65 : 871,019.67 = 344,697.17 : x
  2. Step 2: Convert to fraction form
    631,168.65/871,019.67 = 344,697.17/x
  3. Step 3: Cross multiply
    631,168.65x = 871,019.67 × 344,697.17
  4. Step 4: Simplify right side
    631,168.65x = 300,238,010,908.24
  5. Step 5: Solve for x
    x = 300,238,010,908.24/631,168.65
  6. Step 6: Final answer
    x = 475,685.87

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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.