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Finding the Fourth Proportional to 908.85, 1,254.83 and 573.26

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Solution

The fourth proportional to 908.85, 1,254.83 and 573.26 is: 791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.85 : 1,254.83 = 573.26 : x
  2. Step 2: Convert to fraction form
    908.85/1,254.83 = 573.26/x
  3. Step 3: Cross multiply
    908.85x = 1,254.83 × 573.26
  4. Step 4: Simplify right side
    908.85x = 719,344.12
  5. Step 5: Solve for x
    x = 719,344.12/908.85
  6. Step 6: Final answer
    x = 791.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.