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Finding the Fourth Proportional to 668,996.66, 923,215.85 and 363,072.96

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Solution

The fourth proportional to 668,996.66, 923,215.85 and 363,072.96 is: 501,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,996.66 : 923,215.85 = 363,072.96 : x
  2. Step 2: Convert to fraction form
    668,996.66/923,215.85 = 363,072.96/x
  3. Step 3: Cross multiply
    668,996.66x = 923,215.85 × 363,072.96
  4. Step 4: Simplify right side
    668,996.66x = 335,194,709,563.05
  5. Step 5: Solve for x
    x = 335,194,709,563.05/668,996.66
  6. Step 6: Final answer
    x = 501,040.94

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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.