Home / 393,720-843,201

Finding the Third Proportional to 393,720 and 843,201

Calculator

Solution

The third proportional to 393,720 and 843,201 is: 1,805,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,720 : 843,201 = 843,201 : x
  2. Step 2: Convert to fraction form
    393,720/843,201 = 843,201/x
  3. Step 3: Cross multiply
    393,720x = 843,201 × 843,201
  4. Step 4: Simplify right side
    393,720x = 710,987,926,401
  5. Step 5: Solve for x
    x = 710,987,926,401/393,720
  6. Step 6: Final answer
    x = 1,805,821.21

Related Problems

Find third proportional to 196,860 and 421,600.50
Half scale
Find third proportional to 787,440 and 1,686,402
Double scale
Find third proportional to 393,722 and 843,205
Similar ratio
Find third proportional to 590,580 and 1,264,801.50
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.