Home / 290,880-426,744

Finding the Third Proportional to 290,880 and 426,744

Calculator

Solution

The third proportional to 290,880 and 426,744 is: 626,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,880 : 426,744 = 426,744 : x
  2. Step 2: Convert to fraction form
    290,880/426,744 = 426,744/x
  3. Step 3: Cross multiply
    290,880x = 426,744 × 426,744
  4. Step 4: Simplify right side
    290,880x = 182,110,441,536
  5. Step 5: Solve for x
    x = 182,110,441,536/290,880
  6. Step 6: Final answer
    x = 626,067.25

Related Problems

Find third proportional to 145,440 and 213,372
Half scale
Find third proportional to 581,760 and 853,488
Double scale
Find third proportional to 290,882 and 426,747
Similar ratio
Find third proportional to 436,320 and 640,116
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.