Home / 312,640-636,327

Finding the Third Proportional to 312,640 and 636,327

Calculator

Solution

The third proportional to 312,640 and 636,327 is: 1,295,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,640 : 636,327 = 636,327 : x
  2. Step 2: Convert to fraction form
    312,640/636,327 = 636,327/x
  3. Step 3: Cross multiply
    312,640x = 636,327 × 636,327
  4. Step 4: Simplify right side
    312,640x = 404,912,050,929
  5. Step 5: Solve for x
    x = 404,912,050,929/312,640
  6. Step 6: Final answer
    x = 1,295,138.34

Related Problems

Find third proportional to 156,320 and 318,163.50
Half scale
Find third proportional to 625,280 and 1,272,654
Double scale
Find third proportional to 312,642 and 636,331
Similar ratio
Find third proportional to 468,960 and 954,490.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.