Home / 962.40-1,442.33-442.31

Finding the Fourth Proportional to 962.40, 1,442.33 and 442.31

Calculator

Solution

The fourth proportional to 962.40, 1,442.33 and 442.31 is: 662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.40 : 1,442.33 = 442.31 : x
  2. Step 2: Convert to fraction form
    962.40/1,442.33 = 442.31/x
  3. Step 3: Cross multiply
    962.40x = 1,442.33 × 442.31
  4. Step 4: Simplify right side
    962.40x = 637,947.56
  5. Step 5: Solve for x
    x = 637,947.56/962.40
  6. Step 6: Final answer
    x = 662.87

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.