Home / 667.92-1,000.84-436.40

Finding the Fourth Proportional to 667.92, 1,000.84 and 436.40

Calculator

Solution

The fourth proportional to 667.92, 1,000.84 and 436.40 is: 653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.92 : 1,000.84 = 436.40 : x
  2. Step 2: Convert to fraction form
    667.92/1,000.84 = 436.40/x
  3. Step 3: Cross multiply
    667.92x = 1,000.84 × 436.40
  4. Step 4: Simplify right side
    667.92x = 436,766.58
  5. Step 5: Solve for x
    x = 436,766.58/667.92
  6. Step 6: Final answer
    x = 653.92

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.