Home / 426,200-647,075

Finding the Third Proportional to 426,200 and 647,075

Calculator

Solution

The third proportional to 426,200 and 647,075 is: 982,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,200 : 647,075 = 647,075 : x
  2. Step 2: Convert to fraction form
    426,200/647,075 = 647,075/x
  3. Step 3: Cross multiply
    426,200x = 647,075 × 647,075
  4. Step 4: Simplify right side
    426,200x = 418,706,055,625
  5. Step 5: Solve for x
    x = 418,706,055,625/426,200
  6. Step 6: Final answer
    x = 982,416.84

Related Problems

Find third proportional to 213,100 and 323,537.50
Half scale
Find third proportional to 852,400 and 1,294,150
Double scale
Find third proportional to 426,202 and 647,078
Similar ratio
Find third proportional to 639,300 and 970,612.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.