Home / 664,128-996,192-220,896

Finding the Fourth Proportional to 664,128, 996,192 and 220,896

Calculator

Solution

The fourth proportional to 664,128, 996,192 and 220,896 is: 331,344

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,128 : 996,192 = 220,896 : x
  2. Step 2: Convert to fraction form
    664,128/996,192 = 220,896/x
  3. Step 3: Cross multiply
    664,128x = 996,192 × 220,896
  4. Step 4: Simplify right side
    664,128x = 220,054,828,032
  5. Step 5: Solve for x
    x = 220,054,828,032/664,128
  6. Step 6: Final answer
    x = 331,344

Related Problems

Find fourth proportional to 332,064, 498,096 and 110,448
Half scale
Find fourth proportional to 1,328,256, 1,992,384 and 441,792
Double scale
Find fourth proportional to 664,129, 996,193.50 and 220,897
Similar ratio
Find fourth proportional to 996,192, 1,494,288 and 331,344
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.