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Finding the Fourth Proportional to 585.17, 806.84 and 466.78

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Solution

The fourth proportional to 585.17, 806.84 and 466.78 is: 643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.17 : 806.84 = 466.78 : x
  2. Step 2: Convert to fraction form
    585.17/806.84 = 466.78/x
  3. Step 3: Cross multiply
    585.17x = 806.84 × 466.78
  4. Step 4: Simplify right side
    585.17x = 376,610.41
  5. Step 5: Solve for x
    x = 376,610.41/585.17
  6. Step 6: Final answer
    x = 643.59

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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.