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Finding the Fourth Proportional to 604.42, 833.20 and 426.80

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Solution

The fourth proportional to 604.42, 833.20 and 426.80 is: 588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.42 : 833.20 = 426.80 : x
  2. Step 2: Convert to fraction form
    604.42/833.20 = 426.80/x
  3. Step 3: Cross multiply
    604.42x = 833.20 × 426.80
  4. Step 4: Simplify right side
    604.42x = 355,612.38
  5. Step 5: Solve for x
    x = 355,612.38/604.42
  6. Step 6: Final answer
    x = 588.35

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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.