Home / 279,428-442,656

Finding the Third Proportional to 279,428 and 442,656

Calculator

Solution

The third proportional to 279,428 and 442,656 is: 701,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,428 : 442,656 = 442,656 : x
  2. Step 2: Convert to fraction form
    279,428/442,656 = 442,656/x
  3. Step 3: Cross multiply
    279,428x = 442,656 × 442,656
  4. Step 4: Simplify right side
    279,428x = 195,944,334,336
  5. Step 5: Solve for x
    x = 195,944,334,336/279,428
  6. Step 6: Final answer
    x = 701,233.71

Related Problems

Find third proportional to 139,714 and 221,328
Half scale
Find third proportional to 558,856 and 885,312
Double scale
Find third proportional to 279,430 and 442,659
Similar ratio
Find third proportional to 419,142 and 663,984
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.