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Finding the Fourth Proportional to 585.41, 879.75 and 403.97

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Solution

The fourth proportional to 585.41, 879.75 and 403.97 is: 607.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.41 : 879.75 = 403.97 : x
  2. Step 2: Convert to fraction form
    585.41/879.75 = 403.97/x
  3. Step 3: Cross multiply
    585.41x = 879.75 × 403.97
  4. Step 4: Simplify right side
    585.41x = 355,388.21
  5. Step 5: Solve for x
    x = 355,388.21/585.41
  6. Step 6: Final answer
    x = 607.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.