Home / 511,732-809,718

Finding the Third Proportional to 511,732 and 809,718

Calculator

Solution

The third proportional to 511,732 and 809,718 is: 1,281,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,732 : 809,718 = 809,718 : x
  2. Step 2: Convert to fraction form
    511,732/809,718 = 809,718/x
  3. Step 3: Cross multiply
    511,732x = 809,718 × 809,718
  4. Step 4: Simplify right side
    511,732x = 655,643,239,524
  5. Step 5: Solve for x
    x = 655,643,239,524/511,732
  6. Step 6: Final answer
    x = 1,281,223.84

Related Problems

Find third proportional to 255,866 and 404,859
Half scale
Find third proportional to 1,023,464 and 1,619,436
Double scale
Find third proportional to 511,734 and 809,721
Similar ratio
Find third proportional to 767,598 and 1,214,577
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.