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Finding the Fourth Proportional to 479.43, 666.09 and 473.67

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Solution

The fourth proportional to 479.43, 666.09 and 473.67 is: 658.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.43 : 666.09 = 473.67 : x
  2. Step 2: Convert to fraction form
    479.43/666.09 = 473.67/x
  3. Step 3: Cross multiply
    479.43x = 666.09 × 473.67
  4. Step 4: Simplify right side
    479.43x = 315,506.85
  5. Step 5: Solve for x
    x = 315,506.85/479.43
  6. Step 6: Final answer
    x = 658.09

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.