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Finding the Fourth Proportional to 400,672.20, 601,008.30 and 267,119.40

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Solution

The fourth proportional to 400,672.20, 601,008.30 and 267,119.40 is: 400,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,672.20 : 601,008.30 = 267,119.40 : x
  2. Step 2: Convert to fraction form
    400,672.20/601,008.30 = 267,119.40/x
  3. Step 3: Cross multiply
    400,672.20x = 601,008.30 × 267,119.40
  4. Step 4: Simplify right side
    400,672.20x = 160,540,976,491.02
  5. Step 5: Solve for x
    x = 160,540,976,491.02/400,672.20
  6. Step 6: Final answer
    x = 400,679.10

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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.