Home / 180,822-393,789

Finding the Third Proportional to 180,822 and 393,789

Calculator

Solution

The third proportional to 180,822 and 393,789 is: 857,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,822 : 393,789 = 393,789 : x
  2. Step 2: Convert to fraction form
    180,822/393,789 = 393,789/x
  3. Step 3: Cross multiply
    180,822x = 393,789 × 393,789
  4. Step 4: Simplify right side
    180,822x = 155,069,776,521
  5. Step 5: Solve for x
    x = 155,069,776,521/180,822
  6. Step 6: Final answer
    x = 857,582.47

Related Problems

Find third proportional to 90,411 and 196,894.50
Half scale
Find third proportional to 361,644 and 787,578
Double scale
Find third proportional to 180,824 and 393,793
Similar ratio
Find third proportional to 271,233 and 590,683.50
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.