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Finding the Fourth Proportional to 548,514.26, 756,954.50 and 306,819.33

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Solution

The fourth proportional to 548,514.26, 756,954.50 and 306,819.33 is: 423,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,514.26 : 756,954.50 = 306,819.33 : x
  2. Step 2: Convert to fraction form
    548,514.26/756,954.50 = 306,819.33/x
  3. Step 3: Cross multiply
    548,514.26x = 756,954.50 × 306,819.33
  4. Step 4: Simplify right side
    548,514.26x = 232,248,268,745.71
  5. Step 5: Solve for x
    x = 232,248,268,745.71/548,514.26
  6. Step 6: Final answer
    x = 423,413.37

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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.