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Finding the Fourth Proportional to 608.92, 911.70 and 550.60

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Solution

The fourth proportional to 608.92, 911.70 and 550.60 is: 824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.92 : 911.70 = 550.60 : x
  2. Step 2: Convert to fraction form
    608.92/911.70 = 550.60/x
  3. Step 3: Cross multiply
    608.92x = 911.70 × 550.60
  4. Step 4: Simplify right side
    608.92x = 501,982.02
  5. Step 5: Solve for x
    x = 501,982.02/608.92
  6. Step 6: Final answer
    x = 824.38

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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.