Home / 279,202-620,324

Finding the Third Proportional to 279,202 and 620,324

Calculator

Solution

The third proportional to 279,202 and 620,324 is: 1,378,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,202 : 620,324 = 620,324 : x
  2. Step 2: Convert to fraction form
    279,202/620,324 = 620,324/x
  3. Step 3: Cross multiply
    279,202x = 620,324 × 620,324
  4. Step 4: Simplify right side
    279,202x = 384,801,864,976
  5. Step 5: Solve for x
    x = 384,801,864,976/279,202
  6. Step 6: Final answer
    x = 1,378,220.30

Related Problems

Find third proportional to 139,601 and 310,162
Half scale
Find third proportional to 558,404 and 1,240,648
Double scale
Find third proportional to 279,204 and 620,328
Similar ratio
Find third proportional to 418,803 and 930,486
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.