Home / 408,650-612,975-113,162

Finding the Fourth Proportional to 408,650, 612,975 and 113,162

Calculator

Solution

The fourth proportional to 408,650, 612,975 and 113,162 is: 169,743

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,650 : 612,975 = 113,162 : x
  2. Step 2: Convert to fraction form
    408,650/612,975 = 113,162/x
  3. Step 3: Cross multiply
    408,650x = 612,975 × 113,162
  4. Step 4: Simplify right side
    408,650x = 69,365,476,950
  5. Step 5: Solve for x
    x = 69,365,476,950/408,650
  6. Step 6: Final answer
    x = 169,743

Related Problems

Find fourth proportional to 204,325, 306,487.50 and 56,581
Half scale
Find fourth proportional to 817,300, 1,225,950 and 226,324
Double scale
Find fourth proportional to 408,651, 612,976.50 and 113,163
Similar ratio
Find fourth proportional to 612,975, 919,462.50 and 169,743
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.