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Finding the Fourth Proportional to 605,086.80, 906,755.40 and 267,851.40

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Solution

The fourth proportional to 605,086.80, 906,755.40 and 267,851.40 is: 401,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,086.80 : 906,755.40 = 267,851.40 : x
  2. Step 2: Convert to fraction form
    605,086.80/906,755.40 = 267,851.40/x
  3. Step 3: Cross multiply
    605,086.80x = 906,755.40 × 267,851.40
  4. Step 4: Simplify right side
    605,086.80x = 242,875,703,347.56
  5. Step 5: Solve for x
    x = 242,875,703,347.56/605,086.80
  6. Step 6: Final answer
    x = 401,389.86

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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.