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Finding the Fourth Proportional to 605,286.90, 907,711.65 and 245,306.70

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Solution

The fourth proportional to 605,286.90, 907,711.65 and 245,306.70 is: 367,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,286.90 : 907,711.65 = 245,306.70 : x
  2. Step 2: Convert to fraction form
    605,286.90/907,711.65 = 245,306.70/x
  3. Step 3: Cross multiply
    605,286.90x = 907,711.65 × 245,306.70
  4. Step 4: Simplify right side
    605,286.90x = 222,667,749,413.06
  5. Step 5: Solve for x
    x = 222,667,749,413.06/605,286.90
  6. Step 6: Final answer
    x = 367,871.42

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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.