Home / 345,612-518,418-82,956

Finding the Fourth Proportional to 345,612, 518,418 and 82,956

Calculator

Solution

The fourth proportional to 345,612, 518,418 and 82,956 is: 124,434

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,612 : 518,418 = 82,956 : x
  2. Step 2: Convert to fraction form
    345,612/518,418 = 82,956/x
  3. Step 3: Cross multiply
    345,612x = 518,418 × 82,956
  4. Step 4: Simplify right side
    345,612x = 43,005,883,608
  5. Step 5: Solve for x
    x = 43,005,883,608/345,612
  6. Step 6: Final answer
    x = 124,434

Related Problems

Find fourth proportional to 172,806, 259,209 and 41,478
Half scale
Find fourth proportional to 691,224, 1,036,836 and 165,912
Double scale
Find fourth proportional to 345,613, 518,419.50 and 82,957
Similar ratio
Find fourth proportional to 518,418, 777,627 and 124,434
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.