Home / 636,840-865,348

Finding the Third Proportional to 636,840 and 865,348

Calculator

Solution

The third proportional to 636,840 and 865,348 is: 1,175,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,840 : 865,348 = 865,348 : x
  2. Step 2: Convert to fraction form
    636,840/865,348 = 865,348/x
  3. Step 3: Cross multiply
    636,840x = 865,348 × 865,348
  4. Step 4: Simplify right side
    636,840x = 748,827,161,104
  5. Step 5: Solve for x
    x = 748,827,161,104/636,840
  6. Step 6: Final answer
    x = 1,175,848.19

Related Problems

Find third proportional to 318,420 and 432,674
Half scale
Find third proportional to 1,273,680 and 1,730,696
Double scale
Find third proportional to 636,842 and 865,351
Similar ratio
Find third proportional to 955,260 and 1,298,022
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.