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Finding the Third Proportional to 400,610 and 812,284

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Solution

The third proportional to 400,610 and 812,284 is: 1,647,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,610 : 812,284 = 812,284 : x
  2. Step 2: Convert to fraction form
    400,610/812,284 = 812,284/x
  3. Step 3: Cross multiply
    400,610x = 812,284 × 812,284
  4. Step 4: Simplify right side
    400,610x = 659,805,296,656
  5. Step 5: Solve for x
    x = 659,805,296,656/400,610
  6. Step 6: Final answer
    x = 1,647,001.56

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.