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Finding the Fourth Proportional to 631,247.32, 871,107.84 and 344,768.56

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Solution

The fourth proportional to 631,247.32, 871,107.84 and 344,768.56 is: 475,773.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,247.32 : 871,107.84 = 344,768.56 : x
  2. Step 2: Convert to fraction form
    631,247.32/871,107.84 = 344,768.56/x
  3. Step 3: Cross multiply
    631,247.32x = 871,107.84 × 344,768.56
  4. Step 4: Simplify right side
    631,247.32x = 300,330,595,601.51
  5. Step 5: Solve for x
    x = 300,330,595,601.51/631,247.32
  6. Step 6: Final answer
    x = 475,773.26

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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.