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Finding the Fourth Proportional to 579.44, 799.68 and 358.64

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Solution

The fourth proportional to 579.44, 799.68 and 358.64 is: 494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.44 : 799.68 = 358.64 : x
  2. Step 2: Convert to fraction form
    579.44/799.68 = 358.64/x
  3. Step 3: Cross multiply
    579.44x = 799.68 × 358.64
  4. Step 4: Simplify right side
    579.44x = 286,797.24
  5. Step 5: Solve for x
    x = 286,797.24/579.44
  6. Step 6: Final answer
    x = 494.96

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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.