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Finding the Third Proportional to 458,917 and 994,090

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Solution

The third proportional to 458,917 and 994,090 is: 2,153,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,917 : 994,090 = 994,090 : x
  2. Step 2: Convert to fraction form
    458,917/994,090 = 994,090/x
  3. Step 3: Cross multiply
    458,917x = 994,090 × 994,090
  4. Step 4: Simplify right side
    458,917x = 988,214,928,100
  5. Step 5: Solve for x
    x = 988,214,928,100/458,917
  6. Step 6: Final answer
    x = 2,153,363.09

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.