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Finding the Fourth Proportional to 674.73, 929.88 and 549.99

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Solution

The fourth proportional to 674.73, 929.88 and 549.99 is: 757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.73 : 929.88 = 549.99 : x
  2. Step 2: Convert to fraction form
    674.73/929.88 = 549.99/x
  3. Step 3: Cross multiply
    674.73x = 929.88 × 549.99
  4. Step 4: Simplify right side
    674.73x = 511,424.70
  5. Step 5: Solve for x
    x = 511,424.70/674.73
  6. Step 6: Final answer
    x = 757.97

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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.