Home / 927.73-1,389.71-439.30

Finding the Fourth Proportional to 927.73, 1,389.71 and 439.30

Calculator

Solution

The fourth proportional to 927.73, 1,389.71 and 439.30 is: 658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.73 : 1,389.71 = 439.30 : x
  2. Step 2: Convert to fraction form
    927.73/1,389.71 = 439.30/x
  3. Step 3: Cross multiply
    927.73x = 1,389.71 × 439.30
  4. Step 4: Simplify right side
    927.73x = 610,497.41
  5. Step 5: Solve for x
    x = 610,497.41/927.73
  6. Step 6: Final answer
    x = 658.06

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.