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Finding the Fourth Proportional to 384,443.73, 575,890.29 and 321,888.60

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Solution

The fourth proportional to 384,443.73, 575,890.29 and 321,888.60 is: 482,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,443.73 : 575,890.29 = 321,888.60 : x
  2. Step 2: Convert to fraction form
    384,443.73/575,890.29 = 321,888.60/x
  3. Step 3: Cross multiply
    384,443.73x = 575,890.29 × 321,888.60
  4. Step 4: Simplify right side
    384,443.73x = 185,372,519,201.69
  5. Step 5: Solve for x
    x = 185,372,519,201.69/384,443.73
  6. Step 6: Final answer
    x = 482,183.75

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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.