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Finding the Fourth Proportional to 559.11, 836.82 and 539.67

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Solution

The fourth proportional to 559.11, 836.82 and 539.67 is: 807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.11 : 836.82 = 539.67 : x
  2. Step 2: Convert to fraction form
    559.11/836.82 = 539.67/x
  3. Step 3: Cross multiply
    559.11x = 836.82 × 539.67
  4. Step 4: Simplify right side
    559.11x = 451,606.65
  5. Step 5: Solve for x
    x = 451,606.65/559.11
  6. Step 6: Final answer
    x = 807.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.