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Finding the Third Proportional to 425,220 and 925,170

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Solution

The third proportional to 425,220 and 925,170 is: 2,012,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,220 : 925,170 = 925,170 : x
  2. Step 2: Convert to fraction form
    425,220/925,170 = 925,170/x
  3. Step 3: Cross multiply
    425,220x = 925,170 × 925,170
  4. Step 4: Simplify right side
    425,220x = 855,939,528,900
  5. Step 5: Solve for x
    x = 855,939,528,900/425,220
  6. Step 6: Final answer
    x = 2,012,933.37

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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.