Home / 831.34-1,147.16-458.29

Finding the Fourth Proportional to 831.34, 1,147.16 and 458.29

Calculator

Solution

The fourth proportional to 831.34, 1,147.16 and 458.29 is: 632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831.34 : 1,147.16 = 458.29 : x
  2. Step 2: Convert to fraction form
    831.34/1,147.16 = 458.29/x
  3. Step 3: Cross multiply
    831.34x = 1,147.16 × 458.29
  4. Step 4: Simplify right side
    831.34x = 525,733.68
  5. Step 5: Solve for x
    x = 525,733.68/831.34
  6. Step 6: Final answer
    x = 632.40

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.