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Finding the Third Proportional to 471,612 and 666,678

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Solution

The third proportional to 471,612 and 666,678 is: 942,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,612 : 666,678 = 666,678 : x
  2. Step 2: Convert to fraction form
    471,612/666,678 = 666,678/x
  3. Step 3: Cross multiply
    471,612x = 666,678 × 666,678
  4. Step 4: Simplify right side
    471,612x = 444,459,555,684
  5. Step 5: Solve for x
    x = 444,459,555,684/471,612
  6. Step 6: Final answer
    x = 942,426.31

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.