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Finding the Fourth Proportional to 496,729.01, 685,467 and 281,856.26

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Solution

The fourth proportional to 496,729.01, 685,467 and 281,856.26 is: 388,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,729.01 : 685,467 = 281,856.26 : x
  2. Step 2: Convert to fraction form
    496,729.01/685,467 = 281,856.26/x
  3. Step 3: Cross multiply
    496,729.01x = 685,467 × 281,856.26
  4. Step 4: Simplify right side
    496,729.01x = 193,203,161,546.09
  5. Step 5: Solve for x
    x = 193,203,161,546.09/496,729.01
  6. Step 6: Final answer
    x = 388,950.84

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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.