Home / 286,344-629,328

Finding the Third Proportional to 286,344 and 629,328

Calculator

Solution

The third proportional to 286,344 and 629,328 is: 1,383,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,344 : 629,328 = 629,328 : x
  2. Step 2: Convert to fraction form
    286,344/629,328 = 629,328/x
  3. Step 3: Cross multiply
    286,344x = 629,328 × 629,328
  4. Step 4: Simplify right side
    286,344x = 396,053,731,584
  5. Step 5: Solve for x
    x = 396,053,731,584/286,344
  6. Step 6: Final answer
    x = 1,383,139.62

Related Problems

Find third proportional to 143,172 and 314,664
Half scale
Find third proportional to 572,688 and 1,258,656
Double scale
Find third proportional to 286,346 and 629,332
Similar ratio
Find third proportional to 429,516 and 943,992
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.