Home / 494-740-412.58

Finding the Fourth Proportional to 494, 740 and 412.58

Calculator

Solution

The fourth proportional to 494, 740 and 412.58 is: 618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    494 : 740 = 412.58 : x
  2. Step 2: Convert to fraction form
    494/740 = 412.58/x
  3. Step 3: Cross multiply
    494x = 740 × 412.58
  4. Step 4: Simplify right side
    494x = 305,309.20
  5. Step 5: Solve for x
    x = 305,309.20/494
  6. Step 6: Final answer
    x = 618.03

Related Problems

Find fourth proportional to 247, 370 and 206.29
Half scale
Find fourth proportional to 988, 1,480 and 825.16
Double scale
Find fourth proportional to 495, 741.50 and 413.58
Similar ratio
Find fourth proportional to 741, 1,110 and 618.87
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.