Home / 290,606-436,199

Finding the Third Proportional to 290,606 and 436,199

Calculator

Solution

The third proportional to 290,606 and 436,199 is: 654,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,606 : 436,199 = 436,199 : x
  2. Step 2: Convert to fraction form
    290,606/436,199 = 436,199/x
  3. Step 3: Cross multiply
    290,606x = 436,199 × 436,199
  4. Step 4: Simplify right side
    290,606x = 190,269,567,601
  5. Step 5: Solve for x
    x = 190,269,567,601/290,606
  6. Step 6: Final answer
    x = 654,733.79

Related Problems

Find third proportional to 145,303 and 218,099.50
Half scale
Find third proportional to 581,212 and 872,398
Double scale
Find third proportional to 290,608 and 436,202
Similar ratio
Find third proportional to 435,909 and 654,298.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.