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Finding the Fourth Proportional to 389,289.54, 583,883.82 and 123,076.92

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Solution

The fourth proportional to 389,289.54, 583,883.82 and 123,076.92 is: 184,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,289.54 : 583,883.82 = 123,076.92 : x
  2. Step 2: Convert to fraction form
    389,289.54/583,883.82 = 123,076.92/x
  3. Step 3: Cross multiply
    389,289.54x = 583,883.82 × 123,076.92
  4. Step 4: Simplify right side
    389,289.54x = 71,862,622,203.43
  5. Step 5: Solve for x
    x = 71,862,622,203.43/389,289.54
  6. Step 6: Final answer
    x = 184,599.42

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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.