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Finding the Third Proportional to 772,776.75 and 1,678,619.25

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Solution

The third proportional to 772,776.75 and 1,678,619.25 is: 3,646,282.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,776.75 : 1,678,619.25 = 1,678,619.25 : x
  2. Step 2: Convert to fraction form
    772,776.75/1,678,619.25 = 1,678,619.25/x
  3. Step 3: Cross multiply
    772,776.75x = 1,678,619.25 × 1,678,619.25
  4. Step 4: Simplify right side
    772,776.75x = 2,817,762,586,470.56
  5. Step 5: Solve for x
    x = 2,817,762,586,470.56/772,776.75
  6. Step 6: Final answer
    x = 3,646,282.82

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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.