Home / 398,965-865,748

Finding the Third Proportional to 398,965 and 865,748

Calculator

Solution

The third proportional to 398,965 and 865,748 is: 1,878,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,965 : 865,748 = 865,748 : x
  2. Step 2: Convert to fraction form
    398,965/865,748 = 865,748/x
  3. Step 3: Cross multiply
    398,965x = 865,748 × 865,748
  4. Step 4: Simplify right side
    398,965x = 749,519,599,504
  5. Step 5: Solve for x
    x = 749,519,599,504/398,965
  6. Step 6: Final answer
    x = 1,878,660.03

Related Problems

Find third proportional to 199,482.50 and 432,874
Half scale
Find third proportional to 797,930 and 1,731,496
Double scale
Find third proportional to 398,967 and 865,752
Similar ratio
Find third proportional to 598,447.50 and 1,298,622
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.