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Finding the Third Proportional to 644,936 and 1,400,656

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Solution

The third proportional to 644,936 and 1,400,656 is: 3,041,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,936 : 1,400,656 = 1,400,656 : x
  2. Step 2: Convert to fraction form
    644,936/1,400,656 = 1,400,656/x
  3. Step 3: Cross multiply
    644,936x = 1,400,656 × 1,400,656
  4. Step 4: Simplify right side
    644,936x = 1,961,837,230,336
  5. Step 5: Solve for x
    x = 1,961,837,230,336/644,936
  6. Step 6: Final answer
    x = 3,041,909.94

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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.