Home / 307,226-638,977

Finding the Third Proportional to 307,226 and 638,977

Calculator

Solution

The third proportional to 307,226 and 638,977 is: 1,328,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,226 : 638,977 = 638,977 : x
  2. Step 2: Convert to fraction form
    307,226/638,977 = 638,977/x
  3. Step 3: Cross multiply
    307,226x = 638,977 × 638,977
  4. Step 4: Simplify right side
    307,226x = 408,291,606,529
  5. Step 5: Solve for x
    x = 408,291,606,529/307,226
  6. Step 6: Final answer
    x = 1,328,961.76

Related Problems

Find third proportional to 153,613 and 319,488.50
Half scale
Find third proportional to 614,452 and 1,277,954
Double scale
Find third proportional to 307,228 and 638,981
Similar ratio
Find third proportional to 460,839 and 958,465.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.