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Finding the Third Proportional to 427,949.50 and 662,305

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Solution

The third proportional to 427,949.50 and 662,305 is: 1,024,999.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,949.50 : 662,305 = 662,305 : x
  2. Step 2: Convert to fraction form
    427,949.50/662,305 = 662,305/x
  3. Step 3: Cross multiply
    427,949.50x = 662,305 × 662,305
  4. Step 4: Simplify right side
    427,949.50x = 438,647,913,025
  5. Step 5: Solve for x
    x = 438,647,913,025/427,949.50
  6. Step 6: Final answer
    x = 1,024,999.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.