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Finding the Fourth Proportional to 445,848.89, 668,379.67 and 341,135.33

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Solution

The fourth proportional to 445,848.89, 668,379.67 and 341,135.33 is: 511,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,848.89 : 668,379.67 = 341,135.33 : x
  2. Step 2: Convert to fraction form
    445,848.89/668,379.67 = 341,135.33/x
  3. Step 3: Cross multiply
    445,848.89x = 668,379.67 × 341,135.33
  4. Step 4: Simplify right side
    445,848.89x = 228,007,918,855.64
  5. Step 5: Solve for x
    x = 228,007,918,855.64/445,848.89
  6. Step 6: Final answer
    x = 511,401.79

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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.