Home / 515,447.11-772,859.82-231,086.15

Finding the Fourth Proportional to 515,447.11, 772,859.82 and 231,086.15

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Solution

The fourth proportional to 515,447.11, 772,859.82 and 231,086.15 is: 346,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,447.11 : 772,859.82 = 231,086.15 : x
  2. Step 2: Convert to fraction form
    515,447.11/772,859.82 = 231,086.15/x
  3. Step 3: Cross multiply
    515,447.11x = 772,859.82 × 231,086.15
  4. Step 4: Simplify right side
    515,447.11x = 178,597,200,293.49
  5. Step 5: Solve for x
    x = 178,597,200,293.49/515,447.11
  6. Step 6: Final answer
    x = 346,489.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.