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Finding the Third Proportional to 279,018 and 620,028

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Solution

The third proportional to 279,018 and 620,028 is: 1,377,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,018 : 620,028 = 620,028 : x
  2. Step 2: Convert to fraction form
    279,018/620,028 = 620,028/x
  3. Step 3: Cross multiply
    279,018x = 620,028 × 620,028
  4. Step 4: Simplify right side
    279,018x = 384,434,720,784
  5. Step 5: Solve for x
    x = 384,434,720,784/279,018
  6. Step 6: Final answer
    x = 1,377,813.33

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.