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Finding the Third Proportional to 422,400 and 879,624

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Solution

The third proportional to 422,400 and 879,624 is: 1,831,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,400 : 879,624 = 879,624 : x
  2. Step 2: Convert to fraction form
    422,400/879,624 = 879,624/x
  3. Step 3: Cross multiply
    422,400x = 879,624 × 879,624
  4. Step 4: Simplify right side
    422,400x = 773,738,381,376
  5. Step 5: Solve for x
    x = 773,738,381,376/422,400
  6. Step 6: Final answer
    x = 1,831,767.00

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Why These Related Problems?

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