Home / 510.70-704.77-289.67

Finding the Fourth Proportional to 510.70, 704.77 and 289.67

Calculator

Solution

The fourth proportional to 510.70, 704.77 and 289.67 is: 399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.70 : 704.77 = 289.67 : x
  2. Step 2: Convert to fraction form
    510.70/704.77 = 289.67/x
  3. Step 3: Cross multiply
    510.70x = 704.77 × 289.67
  4. Step 4: Simplify right side
    510.70x = 204,149.28
  5. Step 5: Solve for x
    x = 204,149.28/510.70
  6. Step 6: Final answer
    x = 399.75

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.