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Finding the Fourth Proportional to 535.44, 799.35 and 439.32

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Solution

The fourth proportional to 535.44, 799.35 and 439.32 is: 655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.44 : 799.35 = 439.32 : x
  2. Step 2: Convert to fraction form
    535.44/799.35 = 439.32/x
  3. Step 3: Cross multiply
    535.44x = 799.35 × 439.32
  4. Step 4: Simplify right side
    535.44x = 351,170.44
  5. Step 5: Solve for x
    x = 351,170.44/535.44
  6. Step 6: Final answer
    x = 655.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.