Home / 708.80-978.52-534.88

Finding the Fourth Proportional to 708.80, 978.52 and 534.88

Calculator

Solution

The fourth proportional to 708.80, 978.52 and 534.88 is: 738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.80 : 978.52 = 534.88 : x
  2. Step 2: Convert to fraction form
    708.80/978.52 = 534.88/x
  3. Step 3: Cross multiply
    708.80x = 978.52 × 534.88
  4. Step 4: Simplify right side
    708.80x = 523,390.78
  5. Step 5: Solve for x
    x = 523,390.78/708.80
  6. Step 6: Final answer
    x = 738.42

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.