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Finding the Fourth Proportional to 604.97, 836.39 and 579.15

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Solution

The fourth proportional to 604.97, 836.39 and 579.15 is: 800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.97 : 836.39 = 579.15 : x
  2. Step 2: Convert to fraction form
    604.97/836.39 = 579.15/x
  3. Step 3: Cross multiply
    604.97x = 836.39 × 579.15
  4. Step 4: Simplify right side
    604.97x = 484,396.72
  5. Step 5: Solve for x
    x = 484,396.72/604.97
  6. Step 6: Final answer
    x = 800.70

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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.