Home / 508,743-809,813

Finding the Third Proportional to 508,743 and 809,813

Calculator

Solution

The third proportional to 508,743 and 809,813 is: 1,289,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,743 : 809,813 = 809,813 : x
  2. Step 2: Convert to fraction form
    508,743/809,813 = 809,813/x
  3. Step 3: Cross multiply
    508,743x = 809,813 × 809,813
  4. Step 4: Simplify right side
    508,743x = 655,797,094,969
  5. Step 5: Solve for x
    x = 655,797,094,969/508,743
  6. Step 6: Final answer
    x = 1,289,053.80

Related Problems

Find third proportional to 254,371.50 and 404,906.50
Half scale
Find third proportional to 1,017,486 and 1,619,626
Double scale
Find third proportional to 508,745 and 809,816
Similar ratio
Find third proportional to 763,114.50 and 1,214,719.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.