Home / 311,538-680,733

Finding the Third Proportional to 311,538 and 680,733

Calculator

Solution

The third proportional to 311,538 and 680,733 is: 1,487,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,538 : 680,733 = 680,733 : x
  2. Step 2: Convert to fraction form
    311,538/680,733 = 680,733/x
  3. Step 3: Cross multiply
    311,538x = 680,733 × 680,733
  4. Step 4: Simplify right side
    311,538x = 463,397,417,289
  5. Step 5: Solve for x
    x = 463,397,417,289/311,538
  6. Step 6: Final answer
    x = 1,487,450.70

Related Problems

Find third proportional to 155,769 and 340,366.50
Half scale
Find third proportional to 623,076 and 1,361,466
Double scale
Find third proportional to 311,540 and 680,737
Similar ratio
Find third proportional to 467,307 and 1,021,099.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.