Home / 745.02-1,028.04-450.30

Finding the Fourth Proportional to 745.02, 1,028.04 and 450.30

Calculator

Solution

The fourth proportional to 745.02, 1,028.04 and 450.30 is: 621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.02 : 1,028.04 = 450.30 : x
  2. Step 2: Convert to fraction form
    745.02/1,028.04 = 450.30/x
  3. Step 3: Cross multiply
    745.02x = 1,028.04 × 450.30
  4. Step 4: Simplify right side
    745.02x = 462,926.41
  5. Step 5: Solve for x
    x = 462,926.41/745.02
  6. Step 6: Final answer
    x = 621.36

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.