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Finding the Fourth Proportional to 866,447.12, 1,299,194.88 and 267,242

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Solution

The fourth proportional to 866,447.12, 1,299,194.88 and 267,242 is: 400,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,447.12 : 1,299,194.88 = 267,242 : x
  2. Step 2: Convert to fraction form
    866,447.12/1,299,194.88 = 267,242/x
  3. Step 3: Cross multiply
    866,447.12x = 1,299,194.88 × 267,242
  4. Step 4: Simplify right side
    866,447.12x = 347,199,438,120.96
  5. Step 5: Solve for x
    x = 347,199,438,120.96/866,447.12
  6. Step 6: Final answer
    x = 400,716.25

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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.