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Finding the Fourth Proportional to 634.98, 951.51 and 452.76

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Solution

The fourth proportional to 634.98, 951.51 and 452.76 is: 678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.98 : 951.51 = 452.76 : x
  2. Step 2: Convert to fraction form
    634.98/951.51 = 452.76/x
  3. Step 3: Cross multiply
    634.98x = 951.51 × 452.76
  4. Step 4: Simplify right side
    634.98x = 430,805.67
  5. Step 5: Solve for x
    x = 430,805.67/634.98
  6. Step 6: Final answer
    x = 678.46

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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.