Home / 445,200-990,069

Finding the Third Proportional to 445,200 and 990,069

Calculator

Solution

The third proportional to 445,200 and 990,069 is: 2,201,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,200 : 990,069 = 990,069 : x
  2. Step 2: Convert to fraction form
    445,200/990,069 = 990,069/x
  3. Step 3: Cross multiply
    445,200x = 990,069 × 990,069
  4. Step 4: Simplify right side
    445,200x = 980,236,624,761
  5. Step 5: Solve for x
    x = 980,236,624,761/445,200
  6. Step 6: Final answer
    x = 2,201,789.36

Related Problems

Find third proportional to 222,600 and 495,034.50
Half scale
Find third proportional to 890,400 and 1,980,138
Double scale
Find third proportional to 445,202 and 990,073
Similar ratio
Find third proportional to 667,800 and 1,485,103.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.