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Finding the Fourth Proportional to 606.35, 836.33 and 419.85

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Solution

The fourth proportional to 606.35, 836.33 and 419.85 is: 579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.35 : 836.33 = 419.85 : x
  2. Step 2: Convert to fraction form
    606.35/836.33 = 419.85/x
  3. Step 3: Cross multiply
    606.35x = 836.33 × 419.85
  4. Step 4: Simplify right side
    606.35x = 351,131.05
  5. Step 5: Solve for x
    x = 351,131.05/606.35
  6. Step 6: Final answer
    x = 579.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.