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Finding the Fourth Proportional to 605.27, 836.01 and 439.22

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Solution

The fourth proportional to 605.27, 836.01 and 439.22 is: 606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.27 : 836.01 = 439.22 : x
  2. Step 2: Convert to fraction form
    605.27/836.01 = 439.22/x
  3. Step 3: Cross multiply
    605.27x = 836.01 × 439.22
  4. Step 4: Simplify right side
    605.27x = 367,192.31
  5. Step 5: Solve for x
    x = 367,192.31/605.27
  6. Step 6: Final answer
    x = 606.66

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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.