Home / 721,336-1,121,328

Finding the Third Proportional to 721,336 and 1,121,328

Calculator

Solution

The third proportional to 721,336 and 1,121,328 is: 1,743,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,336 : 1,121,328 = 1,121,328 : x
  2. Step 2: Convert to fraction form
    721,336/1,121,328 = 1,121,328/x
  3. Step 3: Cross multiply
    721,336x = 1,121,328 × 1,121,328
  4. Step 4: Simplify right side
    721,336x = 1,257,376,483,584
  5. Step 5: Solve for x
    x = 1,257,376,483,584/721,336
  6. Step 6: Final answer
    x = 1,743,121.77

Related Problems

Find third proportional to 360,668 and 560,664
Half scale
Find third proportional to 1,442,672 and 2,242,656
Double scale
Find third proportional to 721,338 and 1,121,331
Similar ratio
Find third proportional to 1,082,004 and 1,681,992
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.