Home / 640,080-961,821

Finding the Third Proportional to 640,080 and 961,821

Calculator

Solution

The third proportional to 640,080 and 961,821 is: 1,445,287.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,080 : 961,821 = 961,821 : x
  2. Step 2: Convert to fraction form
    640,080/961,821 = 961,821/x
  3. Step 3: Cross multiply
    640,080x = 961,821 × 961,821
  4. Step 4: Simplify right side
    640,080x = 925,099,636,041
  5. Step 5: Solve for x
    x = 925,099,636,041/640,080
  6. Step 6: Final answer
    x = 1,445,287.52

Related Problems

Find third proportional to 320,040 and 480,910.50
Half scale
Find third proportional to 1,280,160 and 1,923,642
Double scale
Find third proportional to 640,082 and 961,824
Similar ratio
Find third proportional to 960,120 and 1,442,731.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.