Home / 321,912-692,912

Finding the Third Proportional to 321,912 and 692,912

Calculator

Solution

The third proportional to 321,912 and 692,912 is: 1,491,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,912 : 692,912 = 692,912 : x
  2. Step 2: Convert to fraction form
    321,912/692,912 = 692,912/x
  3. Step 3: Cross multiply
    321,912x = 692,912 × 692,912
  4. Step 4: Simplify right side
    321,912x = 480,127,039,744
  5. Step 5: Solve for x
    x = 480,127,039,744/321,912
  6. Step 6: Final answer
    x = 1,491,485.37

Related Problems

Find third proportional to 160,956 and 346,456
Half scale
Find third proportional to 643,824 and 1,385,824
Double scale
Find third proportional to 321,914 and 692,916
Similar ratio
Find third proportional to 482,868 and 1,039,368
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.