Home / 649.15-972.68-443.00

Finding the Fourth Proportional to 649.15, 972.68 and 443.00

Calculator

Solution

The fourth proportional to 649.15, 972.68 and 443.00 is: 663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.15 : 972.68 = 443.00 : x
  2. Step 2: Convert to fraction form
    649.15/972.68 = 443.00/x
  3. Step 3: Cross multiply
    649.15x = 972.68 × 443.00
  4. Step 4: Simplify right side
    649.15x = 430,897.46
  5. Step 5: Solve for x
    x = 430,897.46/649.15
  6. Step 6: Final answer
    x = 663.79

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.