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Finding the Fourth Proportional to 391,694.94, 587,804.85 and 251,551.98

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Solution

The fourth proportional to 391,694.94, 587,804.85 and 251,551.98 is: 377,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,694.94 : 587,804.85 = 251,551.98 : x
  2. Step 2: Convert to fraction form
    391,694.94/587,804.85 = 251,551.98/x
  3. Step 3: Cross multiply
    391,694.94x = 587,804.85 × 251,551.98
  4. Step 4: Simplify right side
    391,694.94x = 147,863,473,871.10
  5. Step 5: Solve for x
    x = 147,863,473,871.10/391,694.94
  6. Step 6: Final answer
    x = 377,496.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.