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Finding the Third Proportional to 641,578.50 and 1,377,927

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Solution

The third proportional to 641,578.50 and 1,377,927 is: 2,959,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,578.50 : 1,377,927 = 1,377,927 : x
  2. Step 2: Convert to fraction form
    641,578.50/1,377,927 = 1,377,927/x
  3. Step 3: Cross multiply
    641,578.50x = 1,377,927 × 1,377,927
  4. Step 4: Simplify right side
    641,578.50x = 1,898,682,817,329
  5. Step 5: Solve for x
    x = 1,898,682,817,329/641,578.50
  6. Step 6: Final answer
    x = 2,959,392.84

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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.