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Finding the Fourth Proportional to 866,809.80, 1,300,353.21 and 267,630.12

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Solution

The fourth proportional to 866,809.80, 1,300,353.21 and 267,630.12 is: 401,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,809.80 : 1,300,353.21 = 267,630.12 : x
  2. Step 2: Convert to fraction form
    866,809.80/1,300,353.21 = 267,630.12/x
  3. Step 3: Cross multiply
    866,809.80x = 1,300,353.21 × 267,630.12
  4. Step 4: Simplify right side
    866,809.80x = 348,013,685,634.69
  5. Step 5: Solve for x
    x = 348,013,685,634.69/866,809.80
  6. Step 6: Final answer
    x = 401,487.95

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1.5x scale

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.