Home / 680.64-939.54-432.36

Finding the Fourth Proportional to 680.64, 939.54 and 432.36

Calculator

Solution

The fourth proportional to 680.64, 939.54 and 432.36 is: 596.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    680.64 : 939.54 = 432.36 : x
  2. Step 2: Convert to fraction form
    680.64/939.54 = 432.36/x
  3. Step 3: Cross multiply
    680.64x = 939.54 × 432.36
  4. Step 4: Simplify right side
    680.64x = 406,219.51
  5. Step 5: Solve for x
    x = 406,219.51/680.64
  6. Step 6: Final answer
    x = 596.82

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.