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Finding the Third Proportional to 377,912 and 829,542

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Solution

The third proportional to 377,912 and 829,542 is: 1,820,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,912 : 829,542 = 829,542 : x
  2. Step 2: Convert to fraction form
    377,912/829,542 = 829,542/x
  3. Step 3: Cross multiply
    377,912x = 829,542 × 829,542
  4. Step 4: Simplify right side
    377,912x = 688,139,929,764
  5. Step 5: Solve for x
    x = 688,139,929,764/377,912
  6. Step 6: Final answer
    x = 1,820,899.92

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.