Home / 380,979.52-571,413.12-100,516.48

Finding the Fourth Proportional to 380,979.52, 571,413.12 and 100,516.48

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Solution

The fourth proportional to 380,979.52, 571,413.12 and 100,516.48 is: 150,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,979.52 : 571,413.12 = 100,516.48 : x
  2. Step 2: Convert to fraction form
    380,979.52/571,413.12 = 100,516.48/x
  3. Step 3: Cross multiply
    380,979.52x = 571,413.12 × 100,516.48
  4. Step 4: Simplify right side
    380,979.52x = 57,436,435,448.22
  5. Step 5: Solve for x
    x = 57,436,435,448.22/380,979.52
  6. Step 6: Final answer
    x = 150,759.90

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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.