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Finding the Fourth Proportional to 445,955.22, 668,906.91 and 326,133.54

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Solution

The fourth proportional to 445,955.22, 668,906.91 and 326,133.54 is: 489,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,955.22 : 668,906.91 = 326,133.54 : x
  2. Step 2: Convert to fraction form
    445,955.22/668,906.91 = 326,133.54/x
  3. Step 3: Cross multiply
    445,955.22x = 668,906.91 × 326,133.54
  4. Step 4: Simplify right side
    445,955.22x = 218,152,978,488.76
  5. Step 5: Solve for x
    x = 218,152,978,488.76/445,955.22
  6. Step 6: Final answer
    x = 489,181.35

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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.