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Finding the Third Proportional to 619,425 and 1,313,280

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Solution

The third proportional to 619,425 and 1,313,280 is: 2,784,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,425 : 1,313,280 = 1,313,280 : x
  2. Step 2: Convert to fraction form
    619,425/1,313,280 = 1,313,280/x
  3. Step 3: Cross multiply
    619,425x = 1,313,280 × 1,313,280
  4. Step 4: Simplify right side
    619,425x = 1,724,704,358,400
  5. Step 5: Solve for x
    x = 1,724,704,358,400/619,425
  6. Step 6: Final answer
    x = 2,784,363.50

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.