Home / 322,128-699,615

Finding the Third Proportional to 322,128 and 699,615

Calculator

Solution

The third proportional to 322,128 and 699,615 is: 1,519,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,128 : 699,615 = 699,615 : x
  2. Step 2: Convert to fraction form
    322,128/699,615 = 699,615/x
  3. Step 3: Cross multiply
    322,128x = 699,615 × 699,615
  4. Step 4: Simplify right side
    322,128x = 489,461,148,225
  5. Step 5: Solve for x
    x = 489,461,148,225/322,128
  6. Step 6: Final answer
    x = 1,519,461.67

Related Problems

Find third proportional to 161,064 and 349,807.50
Half scale
Find third proportional to 644,256 and 1,399,230
Double scale
Find third proportional to 322,130 and 699,619
Similar ratio
Find third proportional to 483,192 and 1,049,422.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.