Home / 285,979-621,767

Finding the Third Proportional to 285,979 and 621,767

Calculator

Solution

The third proportional to 285,979 and 621,767 is: 1,351,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,979 : 621,767 = 621,767 : x
  2. Step 2: Convert to fraction form
    285,979/621,767 = 621,767/x
  3. Step 3: Cross multiply
    285,979x = 621,767 × 621,767
  4. Step 4: Simplify right side
    285,979x = 386,594,202,289
  5. Step 5: Solve for x
    x = 386,594,202,289/285,979
  6. Step 6: Final answer
    x = 1,351,827.24

Related Problems

Find third proportional to 142,989.50 and 310,883.50
Half scale
Find third proportional to 571,958 and 1,243,534
Double scale
Find third proportional to 285,981 and 621,771
Similar ratio
Find third proportional to 428,968.50 and 932,650.50
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.