Home / 740.42-1,021.83-429.92

Finding the Fourth Proportional to 740.42, 1,021.83 and 429.92

Calculator

Solution

The fourth proportional to 740.42, 1,021.83 and 429.92 is: 593.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.42 : 1,021.83 = 429.92 : x
  2. Step 2: Convert to fraction form
    740.42/1,021.83 = 429.92/x
  3. Step 3: Cross multiply
    740.42x = 1,021.83 × 429.92
  4. Step 4: Simplify right side
    740.42x = 439,305.15
  5. Step 5: Solve for x
    x = 439,305.15/740.42
  6. Step 6: Final answer
    x = 593.32

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.