Home / 747.56-1,122.14-423.56

Finding the Fourth Proportional to 747.56, 1,122.14 and 423.56

Calculator

Solution

The fourth proportional to 747.56, 1,122.14 and 423.56 is: 635.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    747.56 : 1,122.14 = 423.56 : x
  2. Step 2: Convert to fraction form
    747.56/1,122.14 = 423.56/x
  3. Step 3: Cross multiply
    747.56x = 1,122.14 × 423.56
  4. Step 4: Simplify right side
    747.56x = 475,293.62
  5. Step 5: Solve for x
    x = 475,293.62/747.56
  6. Step 6: Final answer
    x = 635.79

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.