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Finding the Fourth Proportional to 667.46, 920.52 and 482.18

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Solution

The fourth proportional to 667.46, 920.52 and 482.18 is: 664.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.46 : 920.52 = 482.18 : x
  2. Step 2: Convert to fraction form
    667.46/920.52 = 482.18/x
  3. Step 3: Cross multiply
    667.46x = 920.52 × 482.18
  4. Step 4: Simplify right side
    667.46x = 443,851.73
  5. Step 5: Solve for x
    x = 443,851.73/667.46
  6. Step 6: Final answer
    x = 664.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.