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Finding the Fourth Proportional to 631,394.44, 871,384.38 and 344,957.56

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Solution

The fourth proportional to 631,394.44, 871,384.38 and 344,957.56 is: 476,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,394.44 : 871,384.38 = 344,957.56 : x
  2. Step 2: Convert to fraction form
    631,394.44/871,384.38 = 344,957.56/x
  3. Step 3: Cross multiply
    631,394.44x = 871,384.38 × 344,957.56
  4. Step 4: Simplify right side
    631,394.44x = 300,590,629,546.91
  5. Step 5: Solve for x
    x = 300,590,629,546.91/631,394.44
  6. Step 6: Final answer
    x = 476,074.24

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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.