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Finding the Fourth Proportional to 636.95, 956.03 and 453.48

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Solution

The fourth proportional to 636.95, 956.03 and 453.48 is: 680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.95 : 956.03 = 453.48 : x
  2. Step 2: Convert to fraction form
    636.95/956.03 = 453.48/x
  3. Step 3: Cross multiply
    636.95x = 956.03 × 453.48
  4. Step 4: Simplify right side
    636.95x = 433,538.22
  5. Step 5: Solve for x
    x = 433,538.22/636.95
  6. Step 6: Final answer
    x = 680.65

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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.