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Finding the Fourth Proportional to 627,369.80, 865,773.41 and 369,256.41

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Solution

The fourth proportional to 627,369.80, 865,773.41 and 369,256.41 is: 509,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,369.80 : 865,773.41 = 369,256.41 : x
  2. Step 2: Convert to fraction form
    627,369.80/865,773.41 = 369,256.41/x
  3. Step 3: Cross multiply
    627,369.80x = 865,773.41 × 369,256.41
  4. Step 4: Simplify right side
    627,369.80x = 319,692,379,403.78
  5. Step 5: Solve for x
    x = 319,692,379,403.78/627,369.80
  6. Step 6: Final answer
    x = 509,575.66

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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.