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Finding the Fourth Proportional to 956.44, 1,432.76 and 630.82

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Solution

The fourth proportional to 956.44, 1,432.76 and 630.82 is: 944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.44 : 1,432.76 = 630.82 : x
  2. Step 2: Convert to fraction form
    956.44/1,432.76 = 630.82/x
  3. Step 3: Cross multiply
    956.44x = 1,432.76 × 630.82
  4. Step 4: Simplify right side
    956.44x = 903,813.66
  5. Step 5: Solve for x
    x = 903,813.66/956.44
  6. Step 6: Final answer
    x = 944.98

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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.