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Finding the Fourth Proportional to 557,864, 769,846.44 and 303,213.32

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Solution

The fourth proportional to 557,864, 769,846.44 and 303,213.32 is: 418,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,864 : 769,846.44 = 303,213.32 : x
  2. Step 2: Convert to fraction form
    557,864/769,846.44 = 303,213.32/x
  3. Step 3: Cross multiply
    557,864x = 769,846.44 × 303,213.32
  4. Step 4: Simplify right side
    557,864x = 233,427,694,962.58
  5. Step 5: Solve for x
    x = 233,427,694,962.58/557,864
  6. Step 6: Final answer
    x = 418,431.19

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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.