Home / 509,864-809,792

Finding the Third Proportional to 509,864 and 809,792

Calculator

Solution

The third proportional to 509,864 and 809,792 is: 1,286,152.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,864 : 809,792 = 809,792 : x
  2. Step 2: Convert to fraction form
    509,864/809,792 = 809,792/x
  3. Step 3: Cross multiply
    509,864x = 809,792 × 809,792
  4. Step 4: Simplify right side
    509,864x = 655,763,083,264
  5. Step 5: Solve for x
    x = 655,763,083,264/509,864
  6. Step 6: Final answer
    x = 1,286,152.94

Related Problems

Find third proportional to 254,932 and 404,896
Half scale
Find third proportional to 1,019,728 and 1,619,584
Double scale
Find third proportional to 509,866 and 809,795
Similar ratio
Find third proportional to 764,796 and 1,214,688
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.