Home / 609.88-915.66-519.16

Finding the Fourth Proportional to 609.88, 915.66 and 519.16

Calculator

Solution

The fourth proportional to 609.88, 915.66 and 519.16 is: 779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.88 : 915.66 = 519.16 : x
  2. Step 2: Convert to fraction form
    609.88/915.66 = 519.16/x
  3. Step 3: Cross multiply
    609.88x = 915.66 × 519.16
  4. Step 4: Simplify right side
    609.88x = 475,374.05
  5. Step 5: Solve for x
    x = 475,374.05/609.88
  6. Step 6: Final answer
    x = 779.46

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.