Home / 306,700-667,400

Finding the Third Proportional to 306,700 and 667,400

Calculator

Solution

The third proportional to 306,700 and 667,400 is: 1,452,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,700 : 667,400 = 667,400 : x
  2. Step 2: Convert to fraction form
    306,700/667,400 = 667,400/x
  3. Step 3: Cross multiply
    306,700x = 667,400 × 667,400
  4. Step 4: Simplify right side
    306,700x = 445,422,760,000
  5. Step 5: Solve for x
    x = 445,422,760,000/306,700
  6. Step 6: Final answer
    x = 1,452,307.66

Related Problems

Find third proportional to 153,350 and 333,700
Half scale
Find third proportional to 613,400 and 1,334,800
Double scale
Find third proportional to 306,702 and 667,404
Similar ratio
Find third proportional to 460,050 and 1,001,100
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.