Home / 409,258-867,188

Finding the Third Proportional to 409,258 and 867,188

Calculator

Solution

The third proportional to 409,258 and 867,188 is: 1,837,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,258 : 867,188 = 867,188 : x
  2. Step 2: Convert to fraction form
    409,258/867,188 = 867,188/x
  3. Step 3: Cross multiply
    409,258x = 867,188 × 867,188
  4. Step 4: Simplify right side
    409,258x = 752,015,027,344
  5. Step 5: Solve for x
    x = 752,015,027,344/409,258
  6. Step 6: Final answer
    x = 1,837,508.44

Related Problems

Find third proportional to 204,629 and 433,594
Half scale
Find third proportional to 818,516 and 1,734,376
Double scale
Find third proportional to 409,260 and 867,192
Similar ratio
Find third proportional to 613,887 and 1,300,782
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.