Home / 340,782-515,949

Finding the Third Proportional to 340,782 and 515,949

Calculator

Solution

The third proportional to 340,782 and 515,949 is: 781,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,782 : 515,949 = 515,949 : x
  2. Step 2: Convert to fraction form
    340,782/515,949 = 515,949/x
  3. Step 3: Cross multiply
    340,782x = 515,949 × 515,949
  4. Step 4: Simplify right side
    340,782x = 266,203,370,601
  5. Step 5: Solve for x
    x = 266,203,370,601/340,782
  6. Step 6: Final answer
    x = 781,154.43

Related Problems

Find third proportional to 170,391 and 257,974.50
Half scale
Find third proportional to 681,564 and 1,031,898
Double scale
Find third proportional to 340,784 and 515,952
Similar ratio
Find third proportional to 511,173 and 773,923.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.