Home / 774.72-1,069.11-425.39

Finding the Fourth Proportional to 774.72, 1,069.11 and 425.39

Calculator

Solution

The fourth proportional to 774.72, 1,069.11 and 425.39 is: 587.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    774.72 : 1,069.11 = 425.39 : x
  2. Step 2: Convert to fraction form
    774.72/1,069.11 = 425.39/x
  3. Step 3: Cross multiply
    774.72x = 1,069.11 × 425.39
  4. Step 4: Simplify right side
    774.72x = 454,783.36
  5. Step 5: Solve for x
    x = 454,783.36/774.72
  6. Step 6: Final answer
    x = 587.03

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.