Home / 381,474-828,492

Finding the Third Proportional to 381,474 and 828,492

Calculator

Solution

The third proportional to 381,474 and 828,492 is: 1,799,333.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,474 : 828,492 = 828,492 : x
  2. Step 2: Convert to fraction form
    381,474/828,492 = 828,492/x
  3. Step 3: Cross multiply
    381,474x = 828,492 × 828,492
  4. Step 4: Simplify right side
    381,474x = 686,398,994,064
  5. Step 5: Solve for x
    x = 686,398,994,064/381,474
  6. Step 6: Final answer
    x = 1,799,333.62

Related Problems

Find third proportional to 190,737 and 414,246
Half scale
Find third proportional to 762,948 and 1,656,984
Double scale
Find third proportional to 381,476 and 828,496
Similar ratio
Find third proportional to 572,211 and 1,242,738
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.