Home / 311,469-670,324

Finding the Third Proportional to 311,469 and 670,324

Calculator

Solution

The third proportional to 311,469 and 670,324 is: 1,442,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,469 : 670,324 = 670,324 : x
  2. Step 2: Convert to fraction form
    311,469/670,324 = 670,324/x
  3. Step 3: Cross multiply
    311,469x = 670,324 × 670,324
  4. Step 4: Simplify right side
    311,469x = 449,334,264,976
  5. Step 5: Solve for x
    x = 449,334,264,976/311,469
  6. Step 6: Final answer
    x = 1,442,629.17

Related Problems

Find third proportional to 155,734.50 and 335,162
Half scale
Find third proportional to 622,938 and 1,340,648
Double scale
Find third proportional to 311,471 and 670,328
Similar ratio
Find third proportional to 467,203.50 and 1,005,486
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.