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Finding the Fourth Proportional to 498,413.60, 746,729.40 and 303,311.60

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Solution

The fourth proportional to 498,413.60, 746,729.40 and 303,311.60 is: 454,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,413.60 : 746,729.40 = 303,311.60 : x
  2. Step 2: Convert to fraction form
    498,413.60/746,729.40 = 303,311.60/x
  3. Step 3: Cross multiply
    498,413.60x = 746,729.40 × 303,311.60
  4. Step 4: Simplify right side
    498,413.60x = 226,491,689,081.04
  5. Step 5: Solve for x
    x = 226,491,689,081.04/498,413.60
  6. Step 6: Final answer
    x = 454,425.18

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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.