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Finding the Fourth Proportional to 635,999.72, 877,694.82 and 349,547

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Solution

The fourth proportional to 635,999.72, 877,694.82 and 349,547 is: 482,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,999.72 : 877,694.82 = 349,547 : x
  2. Step 2: Convert to fraction form
    635,999.72/877,694.82 = 349,547/x
  3. Step 3: Cross multiply
    635,999.72x = 877,694.82 × 349,547
  4. Step 4: Simplify right side
    635,999.72x = 306,795,591,246.54
  5. Step 5: Solve for x
    x = 306,795,591,246.54/635,999.72
  6. Step 6: Final answer
    x = 482,383.22

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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.