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Finding the Fourth Proportional to 635,992.19, 877,702.86 and 360,403.54

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Solution

The fourth proportional to 635,992.19, 877,702.86 and 360,403.54 is: 497,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,992.19 : 877,702.86 = 360,403.54 : x
  2. Step 2: Convert to fraction form
    635,992.19/877,702.86 = 360,403.54/x
  3. Step 3: Cross multiply
    635,992.19x = 877,702.86 × 360,403.54
  4. Step 4: Simplify right side
    635,992.19x = 316,327,215,617.87
  5. Step 5: Solve for x
    x = 316,327,215,617.87/635,992.19
  6. Step 6: Final answer
    x = 497,375.94

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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.