Home / 918.97-1,268.53-587.68

Finding the Fourth Proportional to 918.97, 1,268.53 and 587.68

Calculator

Solution

The fourth proportional to 918.97, 1,268.53 and 587.68 is: 811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.97 : 1,268.53 = 587.68 : x
  2. Step 2: Convert to fraction form
    918.97/1,268.53 = 587.68/x
  3. Step 3: Cross multiply
    918.97x = 1,268.53 × 587.68
  4. Step 4: Simplify right side
    918.97x = 745,485.07
  5. Step 5: Solve for x
    x = 745,485.07/918.97
  6. Step 6: Final answer
    x = 811.22

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.