Home / 716.57-988.86-401.84

Finding the Fourth Proportional to 716.57, 988.86 and 401.84

Calculator

Solution

The fourth proportional to 716.57, 988.86 and 401.84 is: 554.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.57 : 988.86 = 401.84 : x
  2. Step 2: Convert to fraction form
    716.57/988.86 = 401.84/x
  3. Step 3: Cross multiply
    716.57x = 988.86 × 401.84
  4. Step 4: Simplify right side
    716.57x = 397,358.56
  5. Step 5: Solve for x
    x = 397,358.56/716.57
  6. Step 6: Final answer
    x = 554.53

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.