Home / 378,772-810,742

Finding the Third Proportional to 378,772 and 810,742

Calculator

Solution

The third proportional to 378,772 and 810,742 is: 1,735,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,772 : 810,742 = 810,742 : x
  2. Step 2: Convert to fraction form
    378,772/810,742 = 810,742/x
  3. Step 3: Cross multiply
    378,772x = 810,742 × 810,742
  4. Step 4: Simplify right side
    378,772x = 657,302,590,564
  5. Step 5: Solve for x
    x = 657,302,590,564/378,772
  6. Step 6: Final answer
    x = 1,735,351.59

Related Problems

Find third proportional to 189,386 and 405,371
Half scale
Find third proportional to 757,544 and 1,621,484
Double scale
Find third proportional to 378,774 and 810,746
Similar ratio
Find third proportional to 568,158 and 1,216,113
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.