Home / 405,228-881,808

Finding the Third Proportional to 405,228 and 881,808

Calculator

Solution

The third proportional to 405,228 and 881,808 is: 1,918,883.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,228 : 881,808 = 881,808 : x
  2. Step 2: Convert to fraction form
    405,228/881,808 = 881,808/x
  3. Step 3: Cross multiply
    405,228x = 881,808 × 881,808
  4. Step 4: Simplify right side
    405,228x = 777,585,348,864
  5. Step 5: Solve for x
    x = 777,585,348,864/405,228
  6. Step 6: Final answer
    x = 1,918,883.56

Related Problems

Find third proportional to 202,614 and 440,904
Half scale
Find third proportional to 810,456 and 1,763,616
Double scale
Find third proportional to 405,230 and 881,812
Similar ratio
Find third proportional to 607,842 and 1,322,712
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.