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Finding the Third Proportional to 541,640 and 838,225

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Solution

The third proportional to 541,640 and 838,225 is: 1,297,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,640 : 838,225 = 838,225 : x
  2. Step 2: Convert to fraction form
    541,640/838,225 = 838,225/x
  3. Step 3: Cross multiply
    541,640x = 838,225 × 838,225
  4. Step 4: Simplify right side
    541,640x = 702,621,150,625
  5. Step 5: Solve for x
    x = 702,621,150,625/541,640
  6. Step 6: Final answer
    x = 1,297,210.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.