Home / 508,714-809,778

Finding the Third Proportional to 508,714 and 809,778

Calculator

Solution

The third proportional to 508,714 and 809,778 is: 1,289,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,714 : 809,778 = 809,778 : x
  2. Step 2: Convert to fraction form
    508,714/809,778 = 809,778/x
  3. Step 3: Cross multiply
    508,714x = 809,778 × 809,778
  4. Step 4: Simplify right side
    508,714x = 655,740,409,284
  5. Step 5: Solve for x
    x = 655,740,409,284/508,714
  6. Step 6: Final answer
    x = 1,289,015.85

Related Problems

Find third proportional to 254,357 and 404,889
Half scale
Find third proportional to 1,017,428 and 1,619,556
Double scale
Find third proportional to 508,716 and 809,781
Similar ratio
Find third proportional to 763,071 and 1,214,667
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.