Home / 734.30-1,013.29-402.74

Finding the Fourth Proportional to 734.30, 1,013.29 and 402.74

Calculator

Solution

The fourth proportional to 734.30, 1,013.29 and 402.74 is: 555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.30 : 1,013.29 = 402.74 : x
  2. Step 2: Convert to fraction form
    734.30/1,013.29 = 402.74/x
  3. Step 3: Cross multiply
    734.30x = 1,013.29 × 402.74
  4. Step 4: Simplify right side
    734.30x = 408,087.35
  5. Step 5: Solve for x
    x = 408,087.35/734.30
  6. Step 6: Final answer
    x = 555.75

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.