Home / 998.59-1,377.89-556.48

Finding the Fourth Proportional to 998.59, 1,377.89 and 556.48

Calculator

Solution

The fourth proportional to 998.59, 1,377.89 and 556.48 is: 767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.59 : 1,377.89 = 556.48 : x
  2. Step 2: Convert to fraction form
    998.59/1,377.89 = 556.48/x
  3. Step 3: Cross multiply
    998.59x = 1,377.89 × 556.48
  4. Step 4: Simplify right side
    998.59x = 766,768.23
  5. Step 5: Solve for x
    x = 766,768.23/998.59
  6. Step 6: Final answer
    x = 767.85

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.