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Finding the Third Proportional to 280,106 and 614,636

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Solution

The third proportional to 280,106 and 614,636 is: 1,348,694.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,106 : 614,636 = 614,636 : x
  2. Step 2: Convert to fraction form
    280,106/614,636 = 614,636/x
  3. Step 3: Cross multiply
    280,106x = 614,636 × 614,636
  4. Step 4: Simplify right side
    280,106x = 377,777,412,496
  5. Step 5: Solve for x
    x = 377,777,412,496/280,106
  6. Step 6: Final answer
    x = 1,348,694.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.