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Finding the Fourth Proportional to 758.92, 1,136.94 and 629.32

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Solution

The fourth proportional to 758.92, 1,136.94 and 629.32 is: 942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.92 : 1,136.94 = 629.32 : x
  2. Step 2: Convert to fraction form
    758.92/1,136.94 = 629.32/x
  3. Step 3: Cross multiply
    758.92x = 1,136.94 × 629.32
  4. Step 4: Simplify right side
    758.92x = 715,499.08
  5. Step 5: Solve for x
    x = 715,499.08/758.92
  6. Step 6: Final answer
    x = 942.79

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