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Finding the Fourth Proportional to 608.60, 911.18 and 550.94

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Solution

The fourth proportional to 608.60, 911.18 and 550.94 is: 824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.60 : 911.18 = 550.94 : x
  2. Step 2: Convert to fraction form
    608.60/911.18 = 550.94/x
  3. Step 3: Cross multiply
    608.60x = 911.18 × 550.94
  4. Step 4: Simplify right side
    608.60x = 502,002.33
  5. Step 5: Solve for x
    x = 502,002.33/608.60
  6. Step 6: Final answer
    x = 824.84

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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.