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Finding the Fourth Proportional to 380,620.39, 571,058.05 and 124,464.77

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Solution

The fourth proportional to 380,620.39, 571,058.05 and 124,464.77 is: 186,738.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,620.39 : 571,058.05 = 124,464.77 : x
  2. Step 2: Convert to fraction form
    380,620.39/571,058.05 = 124,464.77/x
  3. Step 3: Cross multiply
    380,620.39x = 571,058.05 × 124,464.77
  4. Step 4: Simplify right side
    380,620.39x = 71,076,608,849.90
  5. Step 5: Solve for x
    x = 71,076,608,849.90/380,620.39
  6. Step 6: Final answer
    x = 186,738.84

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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.