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Finding the Third Proportional to 668,458 and 1,391,996

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Solution

The third proportional to 668,458 and 1,391,996 is: 2,898,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,458 : 1,391,996 = 1,391,996 : x
  2. Step 2: Convert to fraction form
    668,458/1,391,996 = 1,391,996/x
  3. Step 3: Cross multiply
    668,458x = 1,391,996 × 1,391,996
  4. Step 4: Simplify right side
    668,458x = 1,937,652,864,016
  5. Step 5: Solve for x
    x = 1,937,652,864,016/668,458
  6. Step 6: Final answer
    x = 2,898,690.51

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These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.