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Finding the Fourth Proportional to 584.91, 878.18 and 401.85

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Solution

The fourth proportional to 584.91, 878.18 and 401.85 is: 603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.91 : 878.18 = 401.85 : x
  2. Step 2: Convert to fraction form
    584.91/878.18 = 401.85/x
  3. Step 3: Cross multiply
    584.91x = 878.18 × 401.85
  4. Step 4: Simplify right side
    584.91x = 352,894.62
  5. Step 5: Solve for x
    x = 352,894.62/584.91
  6. Step 6: Final answer
    x = 603.33

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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.