Home / 409,600-614,400-98,304

Finding the Fourth Proportional to 409,600, 614,400 and 98,304

Calculator

Solution

The fourth proportional to 409,600, 614,400 and 98,304 is: 147,456

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,600 : 614,400 = 98,304 : x
  2. Step 2: Convert to fraction form
    409,600/614,400 = 98,304/x
  3. Step 3: Cross multiply
    409,600x = 614,400 × 98,304
  4. Step 4: Simplify right side
    409,600x = 60,397,977,600
  5. Step 5: Solve for x
    x = 60,397,977,600/409,600
  6. Step 6: Final answer
    x = 147,456

Related Problems

Find fourth proportional to 204,800, 307,200 and 49,152
Half scale
Find fourth proportional to 819,200, 1,228,800 and 196,608
Double scale
Find fourth proportional to 409,601, 614,401.50 and 98,305
Similar ratio
Find fourth proportional to 614,400, 921,600 and 147,456
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.