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Finding the Fourth Proportional to 606.38, 913.58 and 550.85

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Solution

The fourth proportional to 606.38, 913.58 and 550.85 is: 829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.38 : 913.58 = 550.85 : x
  2. Step 2: Convert to fraction form
    606.38/913.58 = 550.85/x
  3. Step 3: Cross multiply
    606.38x = 913.58 × 550.85
  4. Step 4: Simplify right side
    606.38x = 503,240.29
  5. Step 5: Solve for x
    x = 503,240.29/606.38
  6. Step 6: Final answer
    x = 829.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.