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Finding the Third Proportional to 978,674 and 2,149,803

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Solution

The third proportional to 978,674 and 2,149,803 is: 4,722,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,674 : 2,149,803 = 2,149,803 : x
  2. Step 2: Convert to fraction form
    978,674/2,149,803 = 2,149,803/x
  3. Step 3: Cross multiply
    978,674x = 2,149,803 × 2,149,803
  4. Step 4: Simplify right side
    978,674x = 4,621,652,938,809
  5. Step 5: Solve for x
    x = 4,621,652,938,809/978,674
  6. Step 6: Final answer
    x = 4,722,362.03

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