Home / 386,012-836,428

Finding the Third Proportional to 386,012 and 836,428

Calculator

Solution

The third proportional to 386,012 and 836,428 is: 1,812,409.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,012 : 836,428 = 836,428 : x
  2. Step 2: Convert to fraction form
    386,012/836,428 = 836,428/x
  3. Step 3: Cross multiply
    386,012x = 836,428 × 836,428
  4. Step 4: Simplify right side
    386,012x = 699,611,799,184
  5. Step 5: Solve for x
    x = 699,611,799,184/386,012
  6. Step 6: Final answer
    x = 1,812,409.46

Related Problems

Find third proportional to 193,006 and 418,214
Half scale
Find third proportional to 772,024 and 1,672,856
Double scale
Find third proportional to 386,014 and 836,432
Similar ratio
Find third proportional to 579,018 and 1,254,642
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.