Home / 958.60-1,437.78-309.28

Finding the Fourth Proportional to 958.60, 1,437.78 and 309.28

Calculator

Solution

The fourth proportional to 958.60, 1,437.78 and 309.28 is: 463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.60 : 1,437.78 = 309.28 : x
  2. Step 2: Convert to fraction form
    958.60/1,437.78 = 309.28/x
  3. Step 3: Cross multiply
    958.60x = 1,437.78 × 309.28
  4. Step 4: Simplify right side
    958.60x = 444,676.60
  5. Step 5: Solve for x
    x = 444,676.60/958.60
  6. Step 6: Final answer
    x = 463.88

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.