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Finding the Fourth Proportional to 665,996.36, 919,056.31 and 364,183.88

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Solution

The fourth proportional to 665,996.36, 919,056.31 and 364,183.88 is: 502,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,996.36 : 919,056.31 = 364,183.88 : x
  2. Step 2: Convert to fraction form
    665,996.36/919,056.31 = 364,183.88/x
  3. Step 3: Cross multiply
    665,996.36x = 919,056.31 × 364,183.88
  4. Step 4: Simplify right side
    665,996.36x = 334,705,487,408.54
  5. Step 5: Solve for x
    x = 334,705,487,408.54/665,996.36
  6. Step 6: Final answer
    x = 502,563.54

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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.