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Finding the Third Proportional to 519,912 and 1,117,200

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Solution

The third proportional to 519,912 and 1,117,200 is: 2,400,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,912 : 1,117,200 = 1,117,200 : x
  2. Step 2: Convert to fraction form
    519,912/1,117,200 = 1,117,200/x
  3. Step 3: Cross multiply
    519,912x = 1,117,200 × 1,117,200
  4. Step 4: Simplify right side
    519,912x = 1,248,135,840,000
  5. Step 5: Solve for x
    x = 1,248,135,840,000/519,912
  6. Step 6: Final answer
    x = 2,400,667.50

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.