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Finding the Fourth Proportional to 635,998.72, 877,693.44 and 349,546

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Solution

The fourth proportional to 635,998.72, 877,693.44 and 349,546 is: 482,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,998.72 : 877,693.44 = 349,546 : x
  2. Step 2: Convert to fraction form
    635,998.72/877,693.44 = 349,546/x
  3. Step 3: Cross multiply
    635,998.72x = 877,693.44 × 349,546
  4. Step 4: Simplify right side
    635,998.72x = 306,794,231,178.24
  5. Step 5: Solve for x
    x = 306,794,231,178.24/635,998.72
  6. Step 6: Final answer
    x = 482,381.84

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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.