Home / 1,787,280.47-2,679,413.99-775,640.39

Finding the Fourth Proportional to 1,787,280.47, 2,679,413.99 and 775,640.39

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Solution

The fourth proportional to 1,787,280.47, 2,679,413.99 and 775,640.39 is: 1,162,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,280.47 : 2,679,413.99 = 775,640.39 : x
  2. Step 2: Convert to fraction form
    1,787,280.47/2,679,413.99 = 775,640.39/x
  3. Step 3: Cross multiply
    1,787,280.47x = 2,679,413.99 × 775,640.39
  4. Step 4: Simplify right side
    1,787,280.47x = 2,078,261,721,275.27
  5. Step 5: Solve for x
    x = 2,078,261,721,275.27/1,787,280.47
  6. Step 6: Final answer
    x = 1,162,806.71

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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.