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Finding the Fourth Proportional to 626.71, 941.44 and 445.26

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Solution

The fourth proportional to 626.71, 941.44 and 445.26 is: 668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.71 : 941.44 = 445.26 : x
  2. Step 2: Convert to fraction form
    626.71/941.44 = 445.26/x
  3. Step 3: Cross multiply
    626.71x = 941.44 × 445.26
  4. Step 4: Simplify right side
    626.71x = 419,182.98
  5. Step 5: Solve for x
    x = 419,182.98/626.71
  6. Step 6: Final answer
    x = 668.86

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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.