Home / 667.52-1,002-493.64

Finding the Fourth Proportional to 667.52, 1,002 and 493.64

Calculator

Solution

The fourth proportional to 667.52, 1,002 and 493.64 is: 740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.52 : 1,002 = 493.64 : x
  2. Step 2: Convert to fraction form
    667.52/1,002 = 493.64/x
  3. Step 3: Cross multiply
    667.52x = 1,002 × 493.64
  4. Step 4: Simplify right side
    667.52x = 494,627.28
  5. Step 5: Solve for x
    x = 494,627.28/667.52
  6. Step 6: Final answer
    x = 740.99

Related Problems

Find fourth proportional to 333.76, 501 and 246.82
Half scale
Find fourth proportional to 1,335.04, 2,004 and 987.28
Double scale
Find fourth proportional to 668.52, 1,003.50 and 494.64
Similar ratio
Find fourth proportional to 1,001.28, 1,503 and 740.46
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.