Home / 381,370-828,346

Finding the Third Proportional to 381,370 and 828,346

Calculator

Solution

The third proportional to 381,370 and 828,346 is: 1,799,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,370 : 828,346 = 828,346 : x
  2. Step 2: Convert to fraction form
    381,370/828,346 = 828,346/x
  3. Step 3: Cross multiply
    381,370x = 828,346 × 828,346
  4. Step 4: Simplify right side
    381,370x = 686,157,095,716
  5. Step 5: Solve for x
    x = 686,157,095,716/381,370
  6. Step 6: Final answer
    x = 1,799,190.01

Related Problems

Find third proportional to 190,685 and 414,173
Half scale
Find third proportional to 762,740 and 1,656,692
Double scale
Find third proportional to 381,372 and 828,350
Similar ratio
Find third proportional to 572,055 and 1,242,519
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.