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Finding the Fourth Proportional to 548,595, 757,025.40 and 306,835.68

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Solution

The fourth proportional to 548,595, 757,025.40 and 306,835.68 is: 423,413.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,595 : 757,025.40 = 306,835.68 : x
  2. Step 2: Convert to fraction form
    548,595/757,025.40 = 306,835.68/x
  3. Step 3: Cross multiply
    548,595x = 757,025.40 × 306,835.68
  4. Step 4: Simplify right side
    548,595x = 232,282,403,386.27
  5. Step 5: Solve for x
    x = 232,282,403,386.27/548,595
  6. Step 6: Final answer
    x = 423,413.27

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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.