Home / 633.40-947.62-417.40

Finding the Fourth Proportional to 633.40, 947.62 and 417.40

Calculator

Solution

The fourth proportional to 633.40, 947.62 and 417.40 is: 624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.40 : 947.62 = 417.40 : x
  2. Step 2: Convert to fraction form
    633.40/947.62 = 417.40/x
  3. Step 3: Cross multiply
    633.40x = 947.62 × 417.40
  4. Step 4: Simplify right side
    633.40x = 395,536.59
  5. Step 5: Solve for x
    x = 395,536.59/633.40
  6. Step 6: Final answer
    x = 624.47

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.