Home / 665,896-998,844-198,952

Finding the Fourth Proportional to 665,896, 998,844 and 198,952

Calculator

Solution

The fourth proportional to 665,896, 998,844 and 198,952 is: 298,428

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,896 : 998,844 = 198,952 : x
  2. Step 2: Convert to fraction form
    665,896/998,844 = 198,952/x
  3. Step 3: Cross multiply
    665,896x = 998,844 × 198,952
  4. Step 4: Simplify right side
    665,896x = 198,722,011,488
  5. Step 5: Solve for x
    x = 198,722,011,488/665,896
  6. Step 6: Final answer
    x = 298,428

Related Problems

Find fourth proportional to 332,948, 499,422 and 99,476
Half scale
Find fourth proportional to 1,331,792, 1,997,688 and 397,904
Double scale
Find fourth proportional to 665,897, 998,845.50 and 198,953
Similar ratio
Find fourth proportional to 998,844, 1,498,266 and 298,428
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.