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Finding the Fourth Proportional to 866,445.12, 1,299,191.88 and 267,240

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Solution

The fourth proportional to 866,445.12, 1,299,191.88 and 267,240 is: 400,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,445.12 : 1,299,191.88 = 267,240 : x
  2. Step 2: Convert to fraction form
    866,445.12/1,299,191.88 = 267,240/x
  3. Step 3: Cross multiply
    866,445.12x = 1,299,191.88 × 267,240
  4. Step 4: Simplify right side
    866,445.12x = 347,196,038,011.20
  5. Step 5: Solve for x
    x = 347,196,038,011.20/866,445.12
  6. Step 6: Final answer
    x = 400,713.25

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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.