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Finding the Third Proportional to 400.94 and 874.44

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Solution

The third proportional to 400.94 and 874.44 is: 1,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.94 : 874.44 = 874.44 : x
  2. Step 2: Convert to fraction form
    400.94/874.44 = 874.44/x
  3. Step 3: Cross multiply
    400.94x = 874.44 × 874.44
  4. Step 4: Simplify right side
    400.94x = 764,640.94
  5. Step 5: Solve for x
    x = 764,640.94/400.94
  6. Step 6: Final answer
    x = 1,907.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.