Home / 634.60-947.12-479.76

Finding the Fourth Proportional to 634.60, 947.12 and 479.76

Calculator

Solution

The fourth proportional to 634.60, 947.12 and 479.76 is: 716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.60 : 947.12 = 479.76 : x
  2. Step 2: Convert to fraction form
    634.60/947.12 = 479.76/x
  3. Step 3: Cross multiply
    634.60x = 947.12 × 479.76
  4. Step 4: Simplify right side
    634.60x = 454,390.29
  5. Step 5: Solve for x
    x = 454,390.29/634.60
  6. Step 6: Final answer
    x = 716.03

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.