Home / 745.87-1,029.30-414.32

Finding the Fourth Proportional to 745.87, 1,029.30 and 414.32

Calculator

Solution

The fourth proportional to 745.87, 1,029.30 and 414.32 is: 571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.87 : 1,029.30 = 414.32 : x
  2. Step 2: Convert to fraction form
    745.87/1,029.30 = 414.32/x
  3. Step 3: Cross multiply
    745.87x = 1,029.30 × 414.32
  4. Step 4: Simplify right side
    745.87x = 426,463.19
  5. Step 5: Solve for x
    x = 426,463.19/745.87
  6. Step 6: Final answer
    x = 571.77

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.