Home / 457.79-631.53-339.93

Finding the Fourth Proportional to 457.79, 631.53 and 339.93

Calculator

Solution

The fourth proportional to 457.79, 631.53 and 339.93 is: 468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.79 : 631.53 = 339.93 : x
  2. Step 2: Convert to fraction form
    457.79/631.53 = 339.93/x
  3. Step 3: Cross multiply
    457.79x = 631.53 × 339.93
  4. Step 4: Simplify right side
    457.79x = 214,675.99
  5. Step 5: Solve for x
    x = 214,675.99/457.79
  6. Step 6: Final answer
    x = 468.95

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.