Home / 551,820-843,765

Finding the Third Proportional to 551,820 and 843,765

Calculator

Solution

The third proportional to 551,820 and 843,765 is: 1,290,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,820 : 843,765 = 843,765 : x
  2. Step 2: Convert to fraction form
    551,820/843,765 = 843,765/x
  3. Step 3: Cross multiply
    551,820x = 843,765 × 843,765
  4. Step 4: Simplify right side
    551,820x = 711,939,375,225
  5. Step 5: Solve for x
    x = 711,939,375,225/551,820
  6. Step 6: Final answer
    x = 1,290,165.95

Related Problems

Find third proportional to 275,910 and 421,882.50
Half scale
Find third proportional to 1,103,640 and 1,687,530
Double scale
Find third proportional to 551,822 and 843,768
Similar ratio
Find third proportional to 827,730 and 1,265,647.50
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.