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Finding the Fourth Proportional to 605.26, 908.49 and 503.20

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Solution

The fourth proportional to 605.26, 908.49 and 503.20 is: 755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.26 : 908.49 = 503.20 : x
  2. Step 2: Convert to fraction form
    605.26/908.49 = 503.20/x
  3. Step 3: Cross multiply
    605.26x = 908.49 × 503.20
  4. Step 4: Simplify right side
    605.26x = 457,147.63
  5. Step 5: Solve for x
    x = 457,147.63/605.26
  6. Step 6: Final answer
    x = 755.30

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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.