Home / 386,912.80-580,369.20-292,434.40

Finding the Fourth Proportional to 386,912.80, 580,369.20 and 292,434.40

Calculator

Solution

The fourth proportional to 386,912.80, 580,369.20 and 292,434.40 is: 438,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,912.80 : 580,369.20 = 292,434.40 : x
  2. Step 2: Convert to fraction form
    386,912.80/580,369.20 = 292,434.40/x
  3. Step 3: Cross multiply
    386,912.80x = 580,369.20 × 292,434.40
  4. Step 4: Simplify right side
    386,912.80x = 169,719,918,780.48
  5. Step 5: Solve for x
    x = 169,719,918,780.48/386,912.80
  6. Step 6: Final answer
    x = 438,651.60

Related Problems

Find fourth proportional to 193,456.40, 290,184.60 and 146,217.20
Half scale
Find fourth proportional to 773,825.60, 1,160,738.40 and 584,868.80
Double scale
Find fourth proportional to 386,913.80, 580,370.70 and 292,435.40
Similar ratio
Find fourth proportional to 580,369.20, 870,553.80 and 438,651.60
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.