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Finding the Fourth Proportional to 441.79, 605.80 and 426.34

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Solution

The fourth proportional to 441.79, 605.80 and 426.34 is: 584.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.79 : 605.80 = 426.34 : x
  2. Step 2: Convert to fraction form
    441.79/605.80 = 426.34/x
  3. Step 3: Cross multiply
    441.79x = 605.80 × 426.34
  4. Step 4: Simplify right side
    441.79x = 258,274.64
  5. Step 5: Solve for x
    x = 258,274.64/441.79
  6. Step 6: Final answer
    x = 584.61

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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.