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Finding the Fourth Proportional to 626.44, 936.24 and 577.18

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Solution

The fourth proportional to 626.44, 936.24 and 577.18 is: 862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.44 : 936.24 = 577.18 : x
  2. Step 2: Convert to fraction form
    626.44/936.24 = 577.18/x
  3. Step 3: Cross multiply
    626.44x = 936.24 × 577.18
  4. Step 4: Simplify right side
    626.44x = 540,379.00
  5. Step 5: Solve for x
    x = 540,379.00/626.44
  6. Step 6: Final answer
    x = 862.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.