Home / 656.58-906.09-376.90

Finding the Fourth Proportional to 656.58, 906.09 and 376.90

Calculator

Solution

The fourth proportional to 656.58, 906.09 and 376.90 is: 520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.58 : 906.09 = 376.90 : x
  2. Step 2: Convert to fraction form
    656.58/906.09 = 376.90/x
  3. Step 3: Cross multiply
    656.58x = 906.09 × 376.90
  4. Step 4: Simplify right side
    656.58x = 341,503.06
  5. Step 5: Solve for x
    x = 341,503.06/656.58
  6. Step 6: Final answer
    x = 520.12

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.