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Finding the Fourth Proportional to 691.88, 954.48 and 452.62

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Solution

The fourth proportional to 691.88, 954.48 and 452.62 is: 624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.88 : 954.48 = 452.62 : x
  2. Step 2: Convert to fraction form
    691.88/954.48 = 452.62/x
  3. Step 3: Cross multiply
    691.88x = 954.48 × 452.62
  4. Step 4: Simplify right side
    691.88x = 432,019.63
  5. Step 5: Solve for x
    x = 432,019.63/691.88
  6. Step 6: Final answer
    x = 624.42

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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.