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Finding the Fourth Proportional to 635.80, 946.18 and 629.32

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Solution

The fourth proportional to 635.80, 946.18 and 629.32 is: 936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.80 : 946.18 = 629.32 : x
  2. Step 2: Convert to fraction form
    635.80/946.18 = 629.32/x
  3. Step 3: Cross multiply
    635.80x = 946.18 × 629.32
  4. Step 4: Simplify right side
    635.80x = 595,450.00
  5. Step 5: Solve for x
    x = 595,450.00/635.80
  6. Step 6: Final answer
    x = 936.54

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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.