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Finding the Fourth Proportional to 666,204.36, 919,367.46 and 364,398.36

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Solution

The fourth proportional to 666,204.36, 919,367.46 and 364,398.36 is: 502,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,204.36 : 919,367.46 = 364,398.36 : x
  2. Step 2: Convert to fraction form
    666,204.36/919,367.46 = 364,398.36/x
  3. Step 3: Cross multiply
    666,204.36x = 919,367.46 × 364,398.36
  4. Step 4: Simplify right side
    666,204.36x = 335,015,994,661.37
  5. Step 5: Solve for x
    x = 335,015,994,661.37/666,204.36
  6. Step 6: Final answer
    x = 502,872.71

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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.