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Finding the Fourth Proportional to 619,493.73, 855,201.74 and 415,470.03

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Solution

The fourth proportional to 619,493.73, 855,201.74 and 415,470.03 is: 573,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,493.73 : 855,201.74 = 415,470.03 : x
  2. Step 2: Convert to fraction form
    619,493.73/855,201.74 = 415,470.03/x
  3. Step 3: Cross multiply
    619,493.73x = 855,201.74 × 415,470.03
  4. Step 4: Simplify right side
    619,493.73x = 355,310,692,573.85
  5. Step 5: Solve for x
    x = 355,310,692,573.85/619,493.73
  6. Step 6: Final answer
    x = 573,550.10

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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.