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Finding the Fourth Proportional to 481,413.96, 664,374.09 and 290,423.25

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Solution

The fourth proportional to 481,413.96, 664,374.09 and 290,423.25 is: 400,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,413.96 : 664,374.09 = 290,423.25 : x
  2. Step 2: Convert to fraction form
    481,413.96/664,374.09 = 290,423.25/x
  3. Step 3: Cross multiply
    481,413.96x = 664,374.09 × 290,423.25
  4. Step 4: Simplify right side
    481,413.96x = 192,949,682,433.59
  5. Step 5: Solve for x
    x = 192,949,682,433.59/481,413.96
  6. Step 6: Final answer
    x = 400,797.85

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1.5x scale

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.