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Finding the Third Proportional to 1,640,631 and 2,567,805

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Solution

The third proportional to 1,640,631 and 2,567,805 is: 4,018,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,631 : 2,567,805 = 2,567,805 : x
  2. Step 2: Convert to fraction form
    1,640,631/2,567,805 = 2,567,805/x
  3. Step 3: Cross multiply
    1,640,631x = 2,567,805 × 2,567,805
  4. Step 4: Simplify right side
    1,640,631x = 6,593,622,518,025
  5. Step 5: Solve for x
    x = 6,593,622,518,025/1,640,631
  6. Step 6: Final answer
    x = 4,018,955.22

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.