Home / 323,488-691,308

Finding the Third Proportional to 323,488 and 691,308

Calculator

Solution

The third proportional to 323,488 and 691,308 is: 1,477,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,488 : 691,308 = 691,308 : x
  2. Step 2: Convert to fraction form
    323,488/691,308 = 691,308/x
  3. Step 3: Cross multiply
    323,488x = 691,308 × 691,308
  4. Step 4: Simplify right side
    323,488x = 477,906,750,864
  5. Step 5: Solve for x
    x = 477,906,750,864/323,488
  6. Step 6: Final answer
    x = 1,477,355.42

Related Problems

Find third proportional to 161,744 and 345,654
Half scale
Find third proportional to 646,976 and 1,382,616
Double scale
Find third proportional to 323,490 and 691,312
Similar ratio
Find third proportional to 485,232 and 1,036,962
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.