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Finding the Fourth Proportional to 866,407.84, 1,299,785 and 267,346.48

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Solution

The fourth proportional to 866,407.84, 1,299,785 and 267,346.48 is: 401,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,407.84 : 1,299,785 = 267,346.48 : x
  2. Step 2: Convert to fraction form
    866,407.84/1,299,785 = 267,346.48/x
  3. Step 3: Cross multiply
    866,407.84x = 1,299,785 × 267,346.48
  4. Step 4: Simplify right side
    866,407.84x = 347,492,944,506.80
  5. Step 5: Solve for x
    x = 347,492,944,506.80/866,407.84
  6. Step 6: Final answer
    x = 401,073.18

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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.