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Finding the Fourth Proportional to 635,994.72, 877,687.92 and 349,542

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Solution

The fourth proportional to 635,994.72, 877,687.92 and 349,542 is: 482,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,994.72 : 877,687.92 = 349,542 : x
  2. Step 2: Convert to fraction form
    635,994.72/877,687.92 = 349,542/x
  3. Step 3: Cross multiply
    635,994.72x = 877,687.92 × 349,542
  4. Step 4: Simplify right side
    635,994.72x = 306,788,790,932.64
  5. Step 5: Solve for x
    x = 306,788,790,932.64/635,994.72
  6. Step 6: Final answer
    x = 482,376.32

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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.