Home / 979-1,468.50-361.98

Finding the Fourth Proportional to 979, 1,468.50 and 361.98

Calculator

Solution

The fourth proportional to 979, 1,468.50 and 361.98 is: 542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    979 : 1,468.50 = 361.98 : x
  2. Step 2: Convert to fraction form
    979/1,468.50 = 361.98/x
  3. Step 3: Cross multiply
    979x = 1,468.50 × 361.98
  4. Step 4: Simplify right side
    979x = 531,567.63
  5. Step 5: Solve for x
    x = 531,567.63/979
  6. Step 6: Final answer
    x = 542.97

Related Problems

Find fourth proportional to 489.50, 734.25 and 180.99
Half scale
Find fourth proportional to 1,958, 2,937 and 723.96
Double scale
Find fourth proportional to 980, 1,470 and 362.98
Similar ratio
Find fourth proportional to 1,468.50, 2,202.75 and 542.97
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.