Home / 340,776-515,940

Finding the Third Proportional to 340,776 and 515,940

Calculator

Solution

The third proportional to 340,776 and 515,940 is: 781,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,776 : 515,940 = 515,940 : x
  2. Step 2: Convert to fraction form
    340,776/515,940 = 515,940/x
  3. Step 3: Cross multiply
    340,776x = 515,940 × 515,940
  4. Step 4: Simplify right side
    340,776x = 266,194,083,600
  5. Step 5: Solve for x
    x = 266,194,083,600/340,776
  6. Step 6: Final answer
    x = 781,140.94

Related Problems

Find third proportional to 170,388 and 257,970
Half scale
Find third proportional to 681,552 and 1,031,880
Double scale
Find third proportional to 340,778 and 515,943
Similar ratio
Find third proportional to 511,164 and 773,910
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.