Home / 326,360-691,920

Finding the Third Proportional to 326,360 and 691,920

Calculator

Solution

The third proportional to 326,360 and 691,920 is: 1,466,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,360 : 691,920 = 691,920 : x
  2. Step 2: Convert to fraction form
    326,360/691,920 = 691,920/x
  3. Step 3: Cross multiply
    326,360x = 691,920 × 691,920
  4. Step 4: Simplify right side
    326,360x = 478,753,286,400
  5. Step 5: Solve for x
    x = 478,753,286,400/326,360
  6. Step 6: Final answer
    x = 1,466,948.42

Related Problems

Find third proportional to 163,180 and 345,960
Half scale
Find third proportional to 652,720 and 1,383,840
Double scale
Find third proportional to 326,362 and 691,924
Similar ratio
Find third proportional to 489,540 and 1,037,880
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.