Home / 717.12-1,076.40-556.56

Finding the Fourth Proportional to 717.12, 1,076.40 and 556.56

Calculator

Solution

The fourth proportional to 717.12, 1,076.40 and 556.56 is: 835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.12 : 1,076.40 = 556.56 : x
  2. Step 2: Convert to fraction form
    717.12/1,076.40 = 556.56/x
  3. Step 3: Cross multiply
    717.12x = 1,076.40 × 556.56
  4. Step 4: Simplify right side
    717.12x = 599,081.18
  5. Step 5: Solve for x
    x = 599,081.18/717.12
  6. Step 6: Final answer
    x = 835.40

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.