Home / 670.70-925.68-422.12

Finding the Fourth Proportional to 670.70, 925.68 and 422.12

Calculator

Solution

The fourth proportional to 670.70, 925.68 and 422.12 is: 582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.70 : 925.68 = 422.12 : x
  2. Step 2: Convert to fraction form
    670.70/925.68 = 422.12/x
  3. Step 3: Cross multiply
    670.70x = 925.68 × 422.12
  4. Step 4: Simplify right side
    670.70x = 390,748.04
  5. Step 5: Solve for x
    x = 390,748.04/670.70
  6. Step 6: Final answer
    x = 582.60

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.