Home / 810.50-1,118.54-461.19

Finding the Fourth Proportional to 810.50, 1,118.54 and 461.19

Calculator

Solution

The fourth proportional to 810.50, 1,118.54 and 461.19 is: 636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    810.50 : 1,118.54 = 461.19 : x
  2. Step 2: Convert to fraction form
    810.50/1,118.54 = 461.19/x
  3. Step 3: Cross multiply
    810.50x = 1,118.54 × 461.19
  4. Step 4: Simplify right side
    810.50x = 515,859.46
  5. Step 5: Solve for x
    x = 515,859.46/810.50
  6. Step 6: Final answer
    x = 636.47

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.