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Finding the Fourth Proportional to 574.81, 793.96 and 499.97

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Solution

The fourth proportional to 574.81, 793.96 and 499.97 is: 690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.81 : 793.96 = 499.97 : x
  2. Step 2: Convert to fraction form
    574.81/793.96 = 499.97/x
  3. Step 3: Cross multiply
    574.81x = 793.96 × 499.97
  4. Step 4: Simplify right side
    574.81x = 396,949.71
  5. Step 5: Solve for x
    x = 396,949.71/574.81
  6. Step 6: Final answer
    x = 690.58

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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.