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Finding the Fourth Proportional to 491.34, 734.33 and 452.42

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Solution

The fourth proportional to 491.34, 734.33 and 452.42 is: 676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.34 : 734.33 = 452.42 : x
  2. Step 2: Convert to fraction form
    491.34/734.33 = 452.42/x
  3. Step 3: Cross multiply
    491.34x = 734.33 × 452.42
  4. Step 4: Simplify right side
    491.34x = 332,225.58
  5. Step 5: Solve for x
    x = 332,225.58/491.34
  6. Step 6: Final answer
    x = 676.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.