Home / 551,918-809,702

Finding the Third Proportional to 551,918 and 809,702

Calculator

Solution

The third proportional to 551,918 and 809,702 is: 1,187,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,918 : 809,702 = 809,702 : x
  2. Step 2: Convert to fraction form
    551,918/809,702 = 809,702/x
  3. Step 3: Cross multiply
    551,918x = 809,702 × 809,702
  4. Step 4: Simplify right side
    551,918x = 655,617,328,804
  5. Step 5: Solve for x
    x = 655,617,328,804/551,918
  6. Step 6: Final answer
    x = 1,187,889.01

Related Problems

Find third proportional to 275,959 and 404,851
Half scale
Find third proportional to 1,103,836 and 1,619,404
Double scale
Find third proportional to 551,920 and 809,705
Similar ratio
Find third proportional to 827,877 and 1,214,553
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.