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Finding the Fourth Proportional to 354,574.78, 491,383.25 and 347,846.11

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Solution

The fourth proportional to 354,574.78, 491,383.25 and 347,846.11 is: 482,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,574.78 : 491,383.25 = 347,846.11 : x
  2. Step 2: Convert to fraction form
    354,574.78/491,383.25 = 347,846.11/x
  3. Step 3: Cross multiply
    354,574.78x = 491,383.25 × 347,846.11
  4. Step 4: Simplify right side
    354,574.78x = 170,925,752,031.66
  5. Step 5: Solve for x
    x = 170,925,752,031.66/354,574.78
  6. Step 6: Final answer
    x = 482,058.40

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.