Home / 426,636-921,690

Finding the Third Proportional to 426,636 and 921,690

Calculator

Solution

The third proportional to 426,636 and 921,690 is: 1,991,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,636 : 921,690 = 921,690 : x
  2. Step 2: Convert to fraction form
    426,636/921,690 = 921,690/x
  3. Step 3: Cross multiply
    426,636x = 921,690 × 921,690
  4. Step 4: Simplify right side
    426,636x = 849,512,456,100
  5. Step 5: Solve for x
    x = 849,512,456,100/426,636
  6. Step 6: Final answer
    x = 1,991,187.94

Related Problems

Find third proportional to 213,318 and 460,845
Half scale
Find third proportional to 853,272 and 1,843,380
Double scale
Find third proportional to 426,638 and 921,694
Similar ratio
Find third proportional to 639,954 and 1,382,535
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.