Home / 641,839-1,390,702

Finding the Third Proportional to 641,839 and 1,390,702

Calculator

Solution

The third proportional to 641,839 and 1,390,702 is: 3,013,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,839 : 1,390,702 = 1,390,702 : x
  2. Step 2: Convert to fraction form
    641,839/1,390,702 = 1,390,702/x
  3. Step 3: Cross multiply
    641,839x = 1,390,702 × 1,390,702
  4. Step 4: Simplify right side
    641,839x = 1,934,052,052,804
  5. Step 5: Solve for x
    x = 1,934,052,052,804/641,839
  6. Step 6: Final answer
    x = 3,013,297.81

Related Problems

Find third proportional to 320,919.50 and 695,351
Half scale
Find third proportional to 1,283,678 and 2,781,404
Double scale
Find third proportional to 641,841 and 1,390,706
Similar ratio
Find third proportional to 962,758.50 and 2,086,053
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.