Home / 641,808-998,208

Finding the Third Proportional to 641,808 and 998,208

Calculator

Solution

The third proportional to 641,808 and 998,208 is: 1,552,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,808 : 998,208 = 998,208 : x
  2. Step 2: Convert to fraction form
    641,808/998,208 = 998,208/x
  3. Step 3: Cross multiply
    641,808x = 998,208 × 998,208
  4. Step 4: Simplify right side
    641,808x = 996,419,211,264
  5. Step 5: Solve for x
    x = 996,419,211,264/641,808
  6. Step 6: Final answer
    x = 1,552,519.15

Related Problems

Find third proportional to 320,904 and 499,104
Half scale
Find third proportional to 1,283,616 and 1,996,416
Double scale
Find third proportional to 641,810 and 998,211
Similar ratio
Find third proportional to 962,712 and 1,497,312
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.