Home / 647,354-971,031-204,122

Finding the Fourth Proportional to 647,354, 971,031 and 204,122

Calculator

Solution

The fourth proportional to 647,354, 971,031 and 204,122 is: 306,183

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,354 : 971,031 = 204,122 : x
  2. Step 2: Convert to fraction form
    647,354/971,031 = 204,122/x
  3. Step 3: Cross multiply
    647,354x = 971,031 × 204,122
  4. Step 4: Simplify right side
    647,354x = 198,208,789,782
  5. Step 5: Solve for x
    x = 198,208,789,782/647,354
  6. Step 6: Final answer
    x = 306,183

Related Problems

Find fourth proportional to 323,677, 485,515.50 and 102,061
Half scale
Find fourth proportional to 1,294,708, 1,942,062 and 408,244
Double scale
Find fourth proportional to 647,355, 971,032.50 and 204,123
Similar ratio
Find fourth proportional to 971,031, 1,456,546.50 and 306,183
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.