Home / 299,706-642,162

Finding the Third Proportional to 299,706 and 642,162

Calculator

Solution

The third proportional to 299,706 and 642,162 is: 1,375,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,706 : 642,162 = 642,162 : x
  2. Step 2: Convert to fraction form
    299,706/642,162 = 642,162/x
  3. Step 3: Cross multiply
    299,706x = 642,162 × 642,162
  4. Step 4: Simplify right side
    299,706x = 412,372,034,244
  5. Step 5: Solve for x
    x = 412,372,034,244/299,706
  6. Step 6: Final answer
    x = 1,375,921.85

Related Problems

Find third proportional to 149,853 and 321,081
Half scale
Find third proportional to 599,412 and 1,284,324
Double scale
Find third proportional to 299,708 and 642,166
Similar ratio
Find third proportional to 449,559 and 963,243
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.