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Finding the Third Proportional to 360,786.66 and 778,777.03

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Solution

The third proportional to 360,786.66 and 778,777.03 is: 1,681,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,786.66 : 778,777.03 = 778,777.03 : x
  2. Step 2: Convert to fraction form
    360,786.66/778,777.03 = 778,777.03/x
  3. Step 3: Cross multiply
    360,786.66x = 778,777.03 × 778,777.03
  4. Step 4: Simplify right side
    360,786.66x = 606,493,664,402.56
  5. Step 5: Solve for x
    x = 606,493,664,402.56/360,786.66
  6. Step 6: Final answer
    x = 1,681,031.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.