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Finding the Fourth Proportional to 650,273.91, 897,684.83 and 489,190.42

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Solution

The fourth proportional to 650,273.91, 897,684.83 and 489,190.42 is: 675,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,273.91 : 897,684.83 = 489,190.42 : x
  2. Step 2: Convert to fraction form
    650,273.91/897,684.83 = 489,190.42/x
  3. Step 3: Cross multiply
    650,273.91x = 897,684.83 × 489,190.42
  4. Step 4: Simplify right side
    650,273.91x = 439,138,819,015.33
  5. Step 5: Solve for x
    x = 439,138,819,015.33/650,273.91
  6. Step 6: Final answer
    x = 675,313.61

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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.