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Finding the Fourth Proportional to 635,897.90, 877,538.94 and 349,436.54

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Solution

The fourth proportional to 635,897.90, 877,538.94 and 349,436.54 is: 482,222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,897.90 : 877,538.94 = 349,436.54 : x
  2. Step 2: Convert to fraction form
    635,897.90/877,538.94 = 349,436.54/x
  3. Step 3: Cross multiply
    635,897.90x = 877,538.94 × 349,436.54
  4. Step 4: Simplify right side
    635,897.90x = 306,644,170,908.87
  5. Step 5: Solve for x
    x = 306,644,170,908.87/635,897.90
  6. Step 6: Final answer
    x = 482,222.34

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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.