Home / 275,828-421,662

Finding the Third Proportional to 275,828 and 421,662

Calculator

Solution

The third proportional to 275,828 and 421,662 is: 644,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,828 : 421,662 = 421,662 : x
  2. Step 2: Convert to fraction form
    275,828/421,662 = 421,662/x
  3. Step 3: Cross multiply
    275,828x = 421,662 × 421,662
  4. Step 4: Simplify right side
    275,828x = 177,798,842,244
  5. Step 5: Solve for x
    x = 177,798,842,244/275,828
  6. Step 6: Final answer
    x = 644,600.41

Related Problems

Find third proportional to 137,914 and 210,831
Half scale
Find third proportional to 551,656 and 843,324
Double scale
Find third proportional to 275,830 and 421,665
Similar ratio
Find third proportional to 413,742 and 632,493
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.