Home / 1,328.75-1,993.13-416.75

Finding the Fourth Proportional to 1,328.75, 1,993.13 and 416.75

Calculator

Solution

The fourth proportional to 1,328.75, 1,993.13 and 416.75 is: 625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328.75 : 1,993.13 = 416.75 : x
  2. Step 2: Convert to fraction form
    1,328.75/1,993.13 = 416.75/x
  3. Step 3: Cross multiply
    1,328.75x = 1,993.13 × 416.75
  4. Step 4: Simplify right side
    1,328.75x = 830,636.93
  5. Step 5: Solve for x
    x = 830,636.93/1,328.75
  6. Step 6: Final answer
    x = 625.13

Related Problems

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.