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Finding the Fourth Proportional to 674.92, 1,011 and 349.84

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Solution

The fourth proportional to 674.92, 1,011 and 349.84 is: 524.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.92 : 1,011 = 349.84 : x
  2. Step 2: Convert to fraction form
    674.92/1,011 = 349.84/x
  3. Step 3: Cross multiply
    674.92x = 1,011 × 349.84
  4. Step 4: Simplify right side
    674.92x = 353,688.24
  5. Step 5: Solve for x
    x = 353,688.24/674.92
  6. Step 6: Final answer
    x = 524.04

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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.