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Finding the Third Proportional to 644,550 and 1,403,796

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Solution

The third proportional to 644,550 and 1,403,796 is: 3,057,393.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,550 : 1,403,796 = 1,403,796 : x
  2. Step 2: Convert to fraction form
    644,550/1,403,796 = 1,403,796/x
  3. Step 3: Cross multiply
    644,550x = 1,403,796 × 1,403,796
  4. Step 4: Simplify right side
    644,550x = 1,970,643,209,616
  5. Step 5: Solve for x
    x = 1,970,643,209,616/644,550
  6. Step 6: Final answer
    x = 3,057,393.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.