Home / 381,288-828,984

Finding the Third Proportional to 381,288 and 828,984

Calculator

Solution

The third proportional to 381,288 and 828,984 is: 1,802,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,288 : 828,984 = 828,984 : x
  2. Step 2: Convert to fraction form
    381,288/828,984 = 828,984/x
  3. Step 3: Cross multiply
    381,288x = 828,984 × 828,984
  4. Step 4: Simplify right side
    381,288x = 687,214,472,256
  5. Step 5: Solve for x
    x = 687,214,472,256/381,288
  6. Step 6: Final answer
    x = 1,802,350.12

Related Problems

Find third proportional to 190,644 and 414,492
Half scale
Find third proportional to 762,576 and 1,657,968
Double scale
Find third proportional to 381,290 and 828,988
Similar ratio
Find third proportional to 571,932 and 1,243,476
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.