Home / 631,375.31-871,317.08-344,913.84

Finding the Fourth Proportional to 631,375.31, 871,317.08 and 344,913.84

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Solution

The fourth proportional to 631,375.31, 871,317.08 and 344,913.84 is: 475,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,375.31 : 871,317.08 = 344,913.84 : x
  2. Step 2: Convert to fraction form
    631,375.31/871,317.08 = 344,913.84/x
  3. Step 3: Cross multiply
    631,375.31x = 871,317.08 × 344,913.84
  4. Step 4: Simplify right side
    631,375.31x = 300,529,318,195.82
  5. Step 5: Solve for x
    x = 300,529,318,195.82/631,375.31
  6. Step 6: Final answer
    x = 475,991.56

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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.