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Finding the Fourth Proportional to 605.97, 907.56 and 443.25

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Solution

The fourth proportional to 605.97, 907.56 and 443.25 is: 663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.97 : 907.56 = 443.25 : x
  2. Step 2: Convert to fraction form
    605.97/907.56 = 443.25/x
  3. Step 3: Cross multiply
    605.97x = 907.56 × 443.25
  4. Step 4: Simplify right side
    605.97x = 402,275.97
  5. Step 5: Solve for x
    x = 402,275.97/605.97
  6. Step 6: Final answer
    x = 663.85

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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.