Home / 328,660-672,896

Finding the Third Proportional to 328,660 and 672,896

Calculator

Solution

The third proportional to 328,660 and 672,896 is: 1,377,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,660 : 672,896 = 672,896 : x
  2. Step 2: Convert to fraction form
    328,660/672,896 = 672,896/x
  3. Step 3: Cross multiply
    328,660x = 672,896 × 672,896
  4. Step 4: Simplify right side
    328,660x = 452,789,026,816
  5. Step 5: Solve for x
    x = 452,789,026,816/328,660
  6. Step 6: Final answer
    x = 1,377,682.18

Related Problems

Find third proportional to 164,330 and 336,448
Half scale
Find third proportional to 657,320 and 1,345,792
Double scale
Find third proportional to 328,662 and 672,900
Similar ratio
Find third proportional to 492,990 and 1,009,344
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.