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Finding the Fourth Proportional to 552.41, 829.02 and 445.49

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Solution

The fourth proportional to 552.41, 829.02 and 445.49 is: 668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.41 : 829.02 = 445.49 : x
  2. Step 2: Convert to fraction form
    552.41/829.02 = 445.49/x
  3. Step 3: Cross multiply
    552.41x = 829.02 × 445.49
  4. Step 4: Simplify right side
    552.41x = 369,320.12
  5. Step 5: Solve for x
    x = 369,320.12/552.41
  6. Step 6: Final answer
    x = 668.56

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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.