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Finding the Third Proportional to 644,050 and 1,415,588

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Solution

The third proportional to 644,050 and 1,415,588 is: 3,111,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,050 : 1,415,588 = 1,415,588 : x
  2. Step 2: Convert to fraction form
    644,050/1,415,588 = 1,415,588/x
  3. Step 3: Cross multiply
    644,050x = 1,415,588 × 1,415,588
  4. Step 4: Simplify right side
    644,050x = 2,003,889,385,744
  5. Step 5: Solve for x
    x = 2,003,889,385,744/644,050
  6. Step 6: Final answer
    x = 3,111,387.91

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.