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Finding the Fourth Proportional to 635,618.40, 877,180.96 and 363,771.60

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Solution

The fourth proportional to 635,618.40, 877,180.96 and 363,771.60 is: 502,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,618.40 : 877,180.96 = 363,771.60 : x
  2. Step 2: Convert to fraction form
    635,618.40/877,180.96 = 363,771.60/x
  3. Step 3: Cross multiply
    635,618.40x = 877,180.96 × 363,771.60
  4. Step 4: Simplify right side
    635,618.40x = 319,093,521,308.74
  5. Step 5: Solve for x
    x = 319,093,521,308.74/635,618.40
  6. Step 6: Final answer
    x = 502,020.59

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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.