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Finding the Fourth Proportional to 481,908.22, 664,815.27 and 290,860.54

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Solution

The fourth proportional to 481,908.22, 664,815.27 and 290,860.54 is: 401,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,908.22 : 664,815.27 = 290,860.54 : x
  2. Step 2: Convert to fraction form
    481,908.22/664,815.27 = 290,860.54/x
  3. Step 3: Cross multiply
    481,908.22x = 664,815.27 × 290,860.54
  4. Step 4: Simplify right side
    481,908.22x = 193,368,528,432.45
  5. Step 5: Solve for x
    x = 193,368,528,432.45/481,908.22
  6. Step 6: Final answer
    x = 401,255.92

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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.