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Finding the Fourth Proportional to 452.55, 674.86 and 448.44

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Solution

The fourth proportional to 452.55, 674.86 and 448.44 is: 668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.55 : 674.86 = 448.44 : x
  2. Step 2: Convert to fraction form
    452.55/674.86 = 448.44/x
  3. Step 3: Cross multiply
    452.55x = 674.86 × 448.44
  4. Step 4: Simplify right side
    452.55x = 302,631.98
  5. Step 5: Solve for x
    x = 302,631.98/452.55
  6. Step 6: Final answer
    x = 668.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.