Home / 408,910-838,227

Finding the Third Proportional to 408,910 and 838,227

Calculator

Solution

The third proportional to 408,910 and 838,227 is: 1,718,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,910 : 838,227 = 838,227 : x
  2. Step 2: Convert to fraction form
    408,910/838,227 = 838,227/x
  3. Step 3: Cross multiply
    408,910x = 838,227 × 838,227
  4. Step 4: Simplify right side
    408,910x = 702,624,503,529
  5. Step 5: Solve for x
    x = 702,624,503,529/408,910
  6. Step 6: Final answer
    x = 1,718,286.43

Related Problems

Find third proportional to 204,455 and 419,113.50
Half scale
Find third proportional to 817,820 and 1,676,454
Double scale
Find third proportional to 408,912 and 838,231
Similar ratio
Find third proportional to 613,365 and 1,257,340.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.