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Finding the Fourth Proportional to 898,414.40, 1,347,643.20 and 267,348.80

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Solution

The fourth proportional to 898,414.40, 1,347,643.20 and 267,348.80 is: 401,029.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,414.40 : 1,347,643.20 = 267,348.80 : x
  2. Step 2: Convert to fraction form
    898,414.40/1,347,643.20 = 267,348.80/x
  3. Step 3: Cross multiply
    898,414.40x = 1,347,643.20 × 267,348.80
  4. Step 4: Simplify right side
    898,414.40x = 360,290,792,348.16
  5. Step 5: Solve for x
    x = 360,290,792,348.16/898,414.40
  6. Step 6: Final answer
    x = 401,029.63

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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.