Home / 929.47-1,394.32-313.24

Finding the Fourth Proportional to 929.47, 1,394.32 and 313.24

Calculator

Solution

The fourth proportional to 929.47, 1,394.32 and 313.24 is: 469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.47 : 1,394.32 = 313.24 : x
  2. Step 2: Convert to fraction form
    929.47/1,394.32 = 313.24/x
  3. Step 3: Cross multiply
    929.47x = 1,394.32 × 313.24
  4. Step 4: Simplify right side
    929.47x = 436,756.80
  5. Step 5: Solve for x
    x = 436,756.80/929.47
  6. Step 6: Final answer
    x = 469.90

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.