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Finding the Third Proportional to 629,569 and 1,374,390

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Solution

The third proportional to 629,569 and 1,374,390 is: 3,000,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,569 : 1,374,390 = 1,374,390 : x
  2. Step 2: Convert to fraction form
    629,569/1,374,390 = 1,374,390/x
  3. Step 3: Cross multiply
    629,569x = 1,374,390 × 1,374,390
  4. Step 4: Simplify right side
    629,569x = 1,888,947,872,100
  5. Step 5: Solve for x
    x = 1,888,947,872,100/629,569
  6. Step 6: Final answer
    x = 3,000,382.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.