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Finding the Fourth Proportional to 694,241.47, 958,141.96 and 388,334.84

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Solution

The fourth proportional to 694,241.47, 958,141.96 and 388,334.84 is: 535,951.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,241.47 : 958,141.96 = 388,334.84 : x
  2. Step 2: Convert to fraction form
    694,241.47/958,141.96 = 388,334.84/x
  3. Step 3: Cross multiply
    694,241.47x = 958,141.96 × 388,334.84
  4. Step 4: Simplify right side
    694,241.47x = 372,079,904,733.89
  5. Step 5: Solve for x
    x = 372,079,904,733.89/694,241.47
  6. Step 6: Final answer
    x = 535,951.72

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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.