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Finding the Third Proportional to 678,015.56 and 1,486,112.06

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Solution

The third proportional to 678,015.56 and 1,486,112.06 is: 3,257,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,015.56 : 1,486,112.06 = 1,486,112.06 : x
  2. Step 2: Convert to fraction form
    678,015.56/1,486,112.06 = 1,486,112.06/x
  3. Step 3: Cross multiply
    678,015.56x = 1,486,112.06 × 1,486,112.06
  4. Step 4: Simplify right side
    678,015.56x = 2,208,529,062,308.00
  5. Step 5: Solve for x
    x = 2,208,529,062,308.00/678,015.56
  6. Step 6: Final answer
    x = 3,257,342.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.