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Finding the Fourth Proportional to 579.24, 799.62 and 371.88

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Solution

The fourth proportional to 579.24, 799.62 and 371.88 is: 513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.24 : 799.62 = 371.88 : x
  2. Step 2: Convert to fraction form
    579.24/799.62 = 371.88/x
  3. Step 3: Cross multiply
    579.24x = 799.62 × 371.88
  4. Step 4: Simplify right side
    579.24x = 297,362.69
  5. Step 5: Solve for x
    x = 297,362.69/579.24
  6. Step 6: Final answer
    x = 513.37

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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.