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Finding the Fourth Proportional to 605.26, 906.15 and 451.90

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Solution

The fourth proportional to 605.26, 906.15 and 451.90 is: 676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.26 : 906.15 = 451.90 : x
  2. Step 2: Convert to fraction form
    605.26/906.15 = 451.90/x
  3. Step 3: Cross multiply
    605.26x = 906.15 × 451.90
  4. Step 4: Simplify right side
    605.26x = 409,489.19
  5. Step 5: Solve for x
    x = 409,489.19/605.26
  6. Step 6: Final answer
    x = 676.55

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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.