Home / 321,202-691,736

Finding the Third Proportional to 321,202 and 691,736

Calculator

Solution

The third proportional to 321,202 and 691,736 is: 1,489,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,202 : 691,736 = 691,736 : x
  2. Step 2: Convert to fraction form
    321,202/691,736 = 691,736/x
  3. Step 3: Cross multiply
    321,202x = 691,736 × 691,736
  4. Step 4: Simplify right side
    321,202x = 478,498,693,696
  5. Step 5: Solve for x
    x = 478,498,693,696/321,202
  6. Step 6: Final answer
    x = 1,489,712.68

Related Problems

Find third proportional to 160,601 and 345,868
Half scale
Find third proportional to 642,404 and 1,383,472
Double scale
Find third proportional to 321,204 and 691,740
Similar ratio
Find third proportional to 481,803 and 1,037,604
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.