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Finding the Fourth Proportional to 446,949.78, 616,790.64 and 245,745.78

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Solution

The fourth proportional to 446,949.78, 616,790.64 and 245,745.78 is: 339,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,949.78 : 616,790.64 = 245,745.78 : x
  2. Step 2: Convert to fraction form
    446,949.78/616,790.64 = 245,745.78/x
  3. Step 3: Cross multiply
    446,949.78x = 616,790.64 × 245,745.78
  4. Step 4: Simplify right side
    446,949.78x = 151,573,696,923.50
  5. Step 5: Solve for x
    x = 151,573,696,923.50/446,949.78
  6. Step 6: Final answer
    x = 339,129.15

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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.