Home / 660.13-910.98-427.66

Finding the Fourth Proportional to 660.13, 910.98 and 427.66

Calculator

Solution

The fourth proportional to 660.13, 910.98 and 427.66 is: 590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.13 : 910.98 = 427.66 : x
  2. Step 2: Convert to fraction form
    660.13/910.98 = 427.66/x
  3. Step 3: Cross multiply
    660.13x = 910.98 × 427.66
  4. Step 4: Simplify right side
    660.13x = 389,589.71
  5. Step 5: Solve for x
    x = 389,589.71/660.13
  6. Step 6: Final answer
    x = 590.17

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.