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Finding the Fourth Proportional to 633,131.91, 873,805.41 and 361,137.45

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Solution

The fourth proportional to 633,131.91, 873,805.41 and 361,137.45 is: 498,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,131.91 : 873,805.41 = 361,137.45 : x
  2. Step 2: Convert to fraction form
    633,131.91/873,805.41 = 361,137.45/x
  3. Step 3: Cross multiply
    633,131.91x = 873,805.41 × 361,137.45
  4. Step 4: Simplify right side
    633,131.91x = 315,563,857,563.61
  5. Step 5: Solve for x
    x = 315,563,857,563.61/633,131.91
  6. Step 6: Final answer
    x = 498,417.24

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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.