Home / 515,445.11-772,856.82-231,084.15

Finding the Fourth Proportional to 515,445.11, 772,856.82 and 231,084.15

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Solution

The fourth proportional to 515,445.11, 772,856.82 and 231,084.15 is: 346,486.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,445.11 : 772,856.82 = 231,084.15 : x
  2. Step 2: Convert to fraction form
    515,445.11/772,856.82 = 231,084.15/x
  3. Step 3: Cross multiply
    515,445.11x = 772,856.82 × 231,084.15
  4. Step 4: Simplify right side
    515,445.11x = 178,594,961,321.40
  5. Step 5: Solve for x
    x = 178,594,961,321.40/515,445.11
  6. Step 6: Final answer
    x = 346,486.87

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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.