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Finding the Fourth Proportional to 579.58, 799.90 and 327.58

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Solution

The fourth proportional to 579.58, 799.90 and 327.58 is: 452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.58 : 799.90 = 327.58 : x
  2. Step 2: Convert to fraction form
    579.58/799.90 = 327.58/x
  3. Step 3: Cross multiply
    579.58x = 799.90 × 327.58
  4. Step 4: Simplify right side
    579.58x = 262,031.24
  5. Step 5: Solve for x
    x = 262,031.24/579.58
  6. Step 6: Final answer
    x = 452.11

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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.