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Finding the Fourth Proportional to 568,181.91, 784,135.29 and 326,548.78

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Solution

The fourth proportional to 568,181.91, 784,135.29 and 326,548.78 is: 450,662.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,181.91 : 784,135.29 = 326,548.78 : x
  2. Step 2: Convert to fraction form
    568,181.91/784,135.29 = 326,548.78/x
  3. Step 3: Cross multiply
    568,181.91x = 784,135.29 × 326,548.78
  4. Step 4: Simplify right side
    568,181.91x = 256,058,422,304.45
  5. Step 5: Solve for x
    x = 256,058,422,304.45/568,181.91
  6. Step 6: Final answer
    x = 450,662.75

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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.