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Finding the Third Proportional to 403,112 and 879,908

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Solution

The third proportional to 403,112 and 879,908 is: 1,920,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,112 : 879,908 = 879,908 : x
  2. Step 2: Convert to fraction form
    403,112/879,908 = 879,908/x
  3. Step 3: Cross multiply
    403,112x = 879,908 × 879,908
  4. Step 4: Simplify right side
    403,112x = 774,238,088,464
  5. Step 5: Solve for x
    x = 774,238,088,464/403,112
  6. Step 6: Final answer
    x = 1,920,652.54

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.