Home / 399,640-855,968

Finding the Third Proportional to 399,640 and 855,968

Calculator

Solution

The third proportional to 399,640 and 855,968 is: 1,833,353.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,640 : 855,968 = 855,968 : x
  2. Step 2: Convert to fraction form
    399,640/855,968 = 855,968/x
  3. Step 3: Cross multiply
    399,640x = 855,968 × 855,968
  4. Step 4: Simplify right side
    399,640x = 732,681,217,024
  5. Step 5: Solve for x
    x = 732,681,217,024/399,640
  6. Step 6: Final answer
    x = 1,833,353.06

Related Problems

Find third proportional to 199,820 and 427,984
Half scale
Find third proportional to 799,280 and 1,711,936
Double scale
Find third proportional to 399,642 and 855,972
Similar ratio
Find third proportional to 599,460 and 1,283,952
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.