Home / 551,016.20-760,413.60-309,316.28

Finding the Fourth Proportional to 551,016.20, 760,413.60 and 309,316.28

Calculator

Solution

The fourth proportional to 551,016.20, 760,413.60 and 309,316.28 is: 426,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,016.20 : 760,413.60 = 309,316.28 : x
  2. Step 2: Convert to fraction form
    551,016.20/760,413.60 = 309,316.28/x
  3. Step 3: Cross multiply
    551,016.20x = 760,413.60 × 309,316.28
  4. Step 4: Simplify right side
    551,016.20x = 235,208,306,013.41
  5. Step 5: Solve for x
    x = 235,208,306,013.41/551,016.20
  6. Step 6: Final answer
    x = 426,862.78

Related Problems

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.