Home / 990,498-2,138,628

Finding the Third Proportional to 990,498 and 2,138,628

Calculator

Solution

The third proportional to 990,498 and 2,138,628 is: 4,617,606.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,498 : 2,138,628 = 2,138,628 : x
  2. Step 2: Convert to fraction form
    990,498/2,138,628 = 2,138,628/x
  3. Step 3: Cross multiply
    990,498x = 2,138,628 × 2,138,628
  4. Step 4: Simplify right side
    990,498x = 4,573,729,722,384
  5. Step 5: Solve for x
    x = 4,573,729,722,384/990,498
  6. Step 6: Final answer
    x = 4,617,606.22

Related Problems

Find third proportional to 495,249 and 1,069,314
Half scale
Find third proportional to 1,980,996 and 4,277,256
Double scale
Find third proportional to 990,500 and 2,138,632
Similar ratio
Find third proportional to 1,485,747 and 3,207,942
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.