Home / 606-836.28-330

Finding the Fourth Proportional to 606, 836.28 and 330

Calculator

Solution

The fourth proportional to 606, 836.28 and 330 is: 455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606 : 836.28 = 330 : x
  2. Step 2: Convert to fraction form
    606/836.28 = 330/x
  3. Step 3: Cross multiply
    606x = 836.28 × 330
  4. Step 4: Simplify right side
    606x = 275,972.40
  5. Step 5: Solve for x
    x = 275,972.40/606
  6. Step 6: Final answer
    x = 455.40

Related Problems

Find fourth proportional to 303, 418.14 and 165
Half scale
Find fourth proportional to 1,212, 1,672.56 and 660
Double scale
Find fourth proportional to 607, 837.66 and 331
Similar ratio
Find fourth proportional to 909, 1,254.42 and 495
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.