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Finding the Fourth Proportional to 408,181.36, 612,427.68 and 368,601.52

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Solution

The fourth proportional to 408,181.36, 612,427.68 and 368,601.52 is: 553,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,181.36 : 612,427.68 = 368,601.52 : x
  2. Step 2: Convert to fraction form
    408,181.36/612,427.68 = 368,601.52/x
  3. Step 3: Cross multiply
    408,181.36x = 612,427.68 × 368,601.52
  4. Step 4: Simplify right side
    408,181.36x = 225,741,773,738.07
  5. Step 5: Solve for x
    x = 225,741,773,738.07/408,181.36
  6. Step 6: Final answer
    x = 553,042.83

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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.