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Finding the Fourth Proportional to 668,469.78, 922,484.09 and 362,553.44

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Solution

The fourth proportional to 668,469.78, 922,484.09 and 362,553.44 is: 500,321.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,469.78 : 922,484.09 = 362,553.44 : x
  2. Step 2: Convert to fraction form
    668,469.78/922,484.09 = 362,553.44/x
  3. Step 3: Cross multiply
    668,469.78x = 922,484.09 × 362,553.44
  4. Step 4: Simplify right side
    668,469.78x = 334,449,776,468.73
  5. Step 5: Solve for x
    x = 334,449,776,468.73/668,469.78
  6. Step 6: Final answer
    x = 500,321.46

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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.