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Finding the Fourth Proportional to 605.45, 908.72 and 469.37

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Solution

The fourth proportional to 605.45, 908.72 and 469.37 is: 704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.45 : 908.72 = 469.37 : x
  2. Step 2: Convert to fraction form
    605.45/908.72 = 469.37/x
  3. Step 3: Cross multiply
    605.45x = 908.72 × 469.37
  4. Step 4: Simplify right side
    605.45x = 426,519.02
  5. Step 5: Solve for x
    x = 426,519.02/605.45
  6. Step 6: Final answer
    x = 704.47

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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.