Home / 279,689-622,522

Finding the Third Proportional to 279,689 and 622,522

Calculator

Solution

The third proportional to 279,689 and 622,522 is: 1,385,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,689 : 622,522 = 622,522 : x
  2. Step 2: Convert to fraction form
    279,689/622,522 = 622,522/x
  3. Step 3: Cross multiply
    279,689x = 622,522 × 622,522
  4. Step 4: Simplify right side
    279,689x = 387,533,640,484
  5. Step 5: Solve for x
    x = 387,533,640,484/279,689
  6. Step 6: Final answer
    x = 1,385,587.71

Related Problems

Find third proportional to 139,844.50 and 311,261
Half scale
Find third proportional to 559,378 and 1,245,044
Double scale
Find third proportional to 279,691 and 622,526
Similar ratio
Find third proportional to 419,533.50 and 933,783
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.