Home / 523.20-784-476.80

Finding the Fourth Proportional to 523.20, 784 and 476.80

Calculator

Solution

The fourth proportional to 523.20, 784 and 476.80 is: 714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.20 : 784 = 476.80 : x
  2. Step 2: Convert to fraction form
    523.20/784 = 476.80/x
  3. Step 3: Cross multiply
    523.20x = 784 × 476.80
  4. Step 4: Simplify right side
    523.20x = 373,811.20
  5. Step 5: Solve for x
    x = 373,811.20/523.20
  6. Step 6: Final answer
    x = 714.47

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.