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Finding the Fourth Proportional to 631,241.51, 871,132.15 and 344,775.11

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Solution

The fourth proportional to 631,241.51, 871,132.15 and 344,775.11 is: 475,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,241.51 : 871,132.15 = 344,775.11 : x
  2. Step 2: Convert to fraction form
    631,241.51/871,132.15 = 344,775.11/x
  3. Step 3: Cross multiply
    631,241.51x = 871,132.15 × 344,775.11
  4. Step 4: Simplify right side
    631,241.51x = 300,344,682,840.79
  5. Step 5: Solve for x
    x = 300,344,682,840.79/631,241.51
  6. Step 6: Final answer
    x = 475,799.96

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1.5x scale

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.