Home / 639.42-880.62-594.06

Finding the Fourth Proportional to 639.42, 880.62 and 594.06

Calculator

Solution

The fourth proportional to 639.42, 880.62 and 594.06 is: 818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639.42 : 880.62 = 594.06 : x
  2. Step 2: Convert to fraction form
    639.42/880.62 = 594.06/x
  3. Step 3: Cross multiply
    639.42x = 880.62 × 594.06
  4. Step 4: Simplify right side
    639.42x = 523,141.12
  5. Step 5: Solve for x
    x = 523,141.12/639.42
  6. Step 6: Final answer
    x = 818.15

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.