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Finding the Fourth Proportional to 496,722.88, 685,458.52 and 281,850.13

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Solution

The fourth proportional to 496,722.88, 685,458.52 and 281,850.13 is: 388,942.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,722.88 : 685,458.52 = 281,850.13 : x
  2. Step 2: Convert to fraction form
    496,722.88/685,458.52 = 281,850.13/x
  3. Step 3: Cross multiply
    496,722.88x = 685,458.52 × 281,850.13
  4. Step 4: Simplify right side
    496,722.88x = 193,196,572,971.61
  5. Step 5: Solve for x
    x = 193,196,572,971.61/496,722.88
  6. Step 6: Final answer
    x = 388,942.37

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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.