Home / 299,832-642,168

Finding the Third Proportional to 299,832 and 642,168

Calculator

Solution

The third proportional to 299,832 and 642,168 is: 1,375,369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,832 : 642,168 = 642,168 : x
  2. Step 2: Convert to fraction form
    299,832/642,168 = 642,168/x
  3. Step 3: Cross multiply
    299,832x = 642,168 × 642,168
  4. Step 4: Simplify right side
    299,832x = 412,379,740,224
  5. Step 5: Solve for x
    x = 412,379,740,224/299,832
  6. Step 6: Final answer
    x = 1,375,369.34

Related Problems

Find third proportional to 149,916 and 321,084
Half scale
Find third proportional to 599,664 and 1,284,336
Double scale
Find third proportional to 299,834 and 642,172
Similar ratio
Find third proportional to 449,748 and 963,252
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.