Home / 592.78-818.14-340.72

Finding the Fourth Proportional to 592.78, 818.14 and 340.72

Calculator

Solution

The fourth proportional to 592.78, 818.14 and 340.72 is: 470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.78 : 818.14 = 340.72 : x
  2. Step 2: Convert to fraction form
    592.78/818.14 = 340.72/x
  3. Step 3: Cross multiply
    592.78x = 818.14 × 340.72
  4. Step 4: Simplify right side
    592.78x = 278,756.66
  5. Step 5: Solve for x
    x = 278,756.66/592.78
  6. Step 6: Final answer
    x = 470.25

Related Problems

Find fourth proportional to 296.39, 409.07 and 170.36
Half scale
Find fourth proportional to 1,185.56, 1,636.28 and 681.44
Double scale
Find fourth proportional to 593.78, 819.52 and 341.72
Similar ratio
Find fourth proportional to 889.17, 1,227.21 and 511.08
1.5x scale

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.