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Finding the Fourth Proportional to 579.82, 868.47 and 335.74

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Solution

The fourth proportional to 579.82, 868.47 and 335.74 is: 502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.82 : 868.47 = 335.74 : x
  2. Step 2: Convert to fraction form
    579.82/868.47 = 335.74/x
  3. Step 3: Cross multiply
    579.82x = 868.47 × 335.74
  4. Step 4: Simplify right side
    579.82x = 291,580.12
  5. Step 5: Solve for x
    x = 291,580.12/579.82
  6. Step 6: Final answer
    x = 502.88

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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.