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Finding the Fourth Proportional to 631,447.50, 871,437.76 and 359,539.14

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Solution

The fourth proportional to 631,447.50, 871,437.76 and 359,539.14 is: 496,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,447.50 : 871,437.76 = 359,539.14 : x
  2. Step 2: Convert to fraction form
    631,447.50/871,437.76 = 359,539.14/x
  3. Step 3: Cross multiply
    631,447.50x = 871,437.76 × 359,539.14
  4. Step 4: Simplify right side
    631,447.50x = 313,315,982,793.93
  5. Step 5: Solve for x
    x = 313,315,982,793.93/631,447.50
  6. Step 6: Final answer
    x = 496,186.91

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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.