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Finding the Fourth Proportional to 579.32, 799.62 and 372.68

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Solution

The fourth proportional to 579.32, 799.62 and 372.68 is: 514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.32 : 799.62 = 372.68 : x
  2. Step 2: Convert to fraction form
    579.32/799.62 = 372.68/x
  3. Step 3: Cross multiply
    579.32x = 799.62 × 372.68
  4. Step 4: Simplify right side
    579.32x = 298,002.38
  5. Step 5: Solve for x
    x = 298,002.38/579.32
  6. Step 6: Final answer
    x = 514.40

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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.