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Finding the Fourth Proportional to 606.62, 911.75 and 401.89

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Solution

The fourth proportional to 606.62, 911.75 and 401.89 is: 604.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.62 : 911.75 = 401.89 : x
  2. Step 2: Convert to fraction form
    606.62/911.75 = 401.89/x
  3. Step 3: Cross multiply
    606.62x = 911.75 × 401.89
  4. Step 4: Simplify right side
    606.62x = 366,423.21
  5. Step 5: Solve for x
    x = 366,423.21/606.62
  6. Step 6: Final answer
    x = 604.04

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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.