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Finding the Fourth Proportional to 584.45, 806.61 and 335.78

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Solution

The fourth proportional to 584.45, 806.61 and 335.78 is: 463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.45 : 806.61 = 335.78 : x
  2. Step 2: Convert to fraction form
    584.45/806.61 = 335.78/x
  3. Step 3: Cross multiply
    584.45x = 806.61 × 335.78
  4. Step 4: Simplify right side
    584.45x = 270,843.51
  5. Step 5: Solve for x
    x = 270,843.51/584.45
  6. Step 6: Final answer
    x = 463.42

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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.