Home / 864.07-1,192.45-491.04

Finding the Fourth Proportional to 864.07, 1,192.45 and 491.04

Calculator

Solution

The fourth proportional to 864.07, 1,192.45 and 491.04 is: 677.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    864.07 : 1,192.45 = 491.04 : x
  2. Step 2: Convert to fraction form
    864.07/1,192.45 = 491.04/x
  3. Step 3: Cross multiply
    864.07x = 1,192.45 × 491.04
  4. Step 4: Simplify right side
    864.07x = 585,532.23
  5. Step 5: Solve for x
    x = 585,532.23/864.07
  6. Step 6: Final answer
    x = 677.64

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.