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Finding the Fourth Proportional to 489,620.44, 733,741.02 and 389,335.48

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Solution

The fourth proportional to 489,620.44, 733,741.02 and 389,335.48 is: 583,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,620.44 : 733,741.02 = 389,335.48 : x
  2. Step 2: Convert to fraction form
    489,620.44/733,741.02 = 389,335.48/x
  3. Step 3: Cross multiply
    489,620.44x = 733,741.02 × 389,335.48
  4. Step 4: Simplify right side
    489,620.44x = 285,671,412,217.39
  5. Step 5: Solve for x
    x = 285,671,412,217.39/489,620.44
  6. Step 6: Final answer
    x = 583,454.83

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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.