Home / 493.94-678.59-442.16

Finding the Fourth Proportional to 493.94, 678.59 and 442.16

Calculator

Solution

The fourth proportional to 493.94, 678.59 and 442.16 is: 607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.94 : 678.59 = 442.16 : x
  2. Step 2: Convert to fraction form
    493.94/678.59 = 442.16/x
  3. Step 3: Cross multiply
    493.94x = 678.59 × 442.16
  4. Step 4: Simplify right side
    493.94x = 300,043.14
  5. Step 5: Solve for x
    x = 300,043.14/493.94
  6. Step 6: Final answer
    x = 607.45

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.