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Finding the Third Proportional to 442,813 and 669,462

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Solution

The third proportional to 442,813 and 669,462 is: 1,012,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,813 : 669,462 = 669,462 : x
  2. Step 2: Convert to fraction form
    442,813/669,462 = 669,462/x
  3. Step 3: Cross multiply
    442,813x = 669,462 × 669,462
  4. Step 4: Simplify right side
    442,813x = 448,179,369,444
  5. Step 5: Solve for x
    x = 448,179,369,444/442,813
  6. Step 6: Final answer
    x = 1,012,118.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.