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Finding the Fourth Proportional to 668,006.82, 921,846.03 and 362,081.97

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Solution

The fourth proportional to 668,006.82, 921,846.03 and 362,081.97 is: 499,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,006.82 : 921,846.03 = 362,081.97 : x
  2. Step 2: Convert to fraction form
    668,006.82/921,846.03 = 362,081.97/x
  3. Step 3: Cross multiply
    668,006.82x = 921,846.03 × 362,081.97
  4. Step 4: Simplify right side
    668,006.82x = 333,783,826,579.08
  5. Step 5: Solve for x
    x = 333,783,826,579.08/668,006.82
  6. Step 6: Final answer
    x = 499,671.29

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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.