Home / 291,648-628,820

Finding the Third Proportional to 291,648 and 628,820

Calculator

Solution

The third proportional to 291,648 and 628,820 is: 1,355,793.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,648 : 628,820 = 628,820 : x
  2. Step 2: Convert to fraction form
    291,648/628,820 = 628,820/x
  3. Step 3: Cross multiply
    291,648x = 628,820 × 628,820
  4. Step 4: Simplify right side
    291,648x = 395,414,592,400
  5. Step 5: Solve for x
    x = 395,414,592,400/291,648
  6. Step 6: Final answer
    x = 1,355,793.94

Related Problems

Find third proportional to 145,824 and 314,410
Half scale
Find third proportional to 583,296 and 1,257,640
Double scale
Find third proportional to 291,650 and 628,824
Similar ratio
Find third proportional to 437,472 and 943,230
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.