Home / 508,710-809,769

Finding the Third Proportional to 508,710 and 809,769

Calculator

Solution

The third proportional to 508,710 and 809,769 is: 1,288,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,710 : 809,769 = 809,769 : x
  2. Step 2: Convert to fraction form
    508,710/809,769 = 809,769/x
  3. Step 3: Cross multiply
    508,710x = 809,769 × 809,769
  4. Step 4: Simplify right side
    508,710x = 655,725,833,361
  5. Step 5: Solve for x
    x = 655,725,833,361/508,710
  6. Step 6: Final answer
    x = 1,288,997.33

Related Problems

Find third proportional to 254,355 and 404,884.50
Half scale
Find third proportional to 1,017,420 and 1,619,538
Double scale
Find third proportional to 508,712 and 809,772
Similar ratio
Find third proportional to 763,065 and 1,214,653.50
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.