Home / 301,690-628,410

Finding the Third Proportional to 301,690 and 628,410

Calculator

Solution

The third proportional to 301,690 and 628,410 is: 1,308,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,690 : 628,410 = 628,410 : x
  2. Step 2: Convert to fraction form
    301,690/628,410 = 628,410/x
  3. Step 3: Cross multiply
    301,690x = 628,410 × 628,410
  4. Step 4: Simplify right side
    301,690x = 394,899,128,100
  5. Step 5: Solve for x
    x = 394,899,128,100/301,690
  6. Step 6: Final answer
    x = 1,308,956.64

Related Problems

Find third proportional to 150,845 and 314,205
Half scale
Find third proportional to 603,380 and 1,256,820
Double scale
Find third proportional to 301,692 and 628,414
Similar ratio
Find third proportional to 452,535 and 942,615
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.