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Finding the Fourth Proportional to 611.26, 836.09 and 601.72

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Solution

The fourth proportional to 611.26, 836.09 and 601.72 is: 823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.26 : 836.09 = 601.72 : x
  2. Step 2: Convert to fraction form
    611.26/836.09 = 601.72/x
  3. Step 3: Cross multiply
    611.26x = 836.09 × 601.72
  4. Step 4: Simplify right side
    611.26x = 503,092.07
  5. Step 5: Solve for x
    x = 503,092.07/611.26
  6. Step 6: Final answer
    x = 823.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.