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Finding the Fourth Proportional to 605.60, 910.23 and 401.39

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Solution

The fourth proportional to 605.60, 910.23 and 401.39 is: 603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.60 : 910.23 = 401.39 : x
  2. Step 2: Convert to fraction form
    605.60/910.23 = 401.39/x
  3. Step 3: Cross multiply
    605.60x = 910.23 × 401.39
  4. Step 4: Simplify right side
    605.60x = 365,350.66
  5. Step 5: Solve for x
    x = 365,350.66/605.60
  6. Step 6: Final answer
    x = 603.29

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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.