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Finding the Fourth Proportional to 452.40, 673.19 and 450.87

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Solution

The fourth proportional to 452.40, 673.19 and 450.87 is: 670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.40 : 673.19 = 450.87 : x
  2. Step 2: Convert to fraction form
    452.40/673.19 = 450.87/x
  3. Step 3: Cross multiply
    452.40x = 673.19 × 450.87
  4. Step 4: Simplify right side
    452.40x = 303,521.18
  5. Step 5: Solve for x
    x = 303,521.18/452.40
  6. Step 6: Final answer
    x = 670.91

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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.