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Finding the Fourth Proportional to 550,893.87, 825,564.83 and 438,073.43

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Solution

The fourth proportional to 550,893.87, 825,564.83 and 438,073.43 is: 656,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,893.87 : 825,564.83 = 438,073.43 : x
  2. Step 2: Convert to fraction form
    550,893.87/825,564.83 = 438,073.43/x
  3. Step 3: Cross multiply
    550,893.87x = 825,564.83 × 438,073.43
  4. Step 4: Simplify right side
    550,893.87x = 361,658,010,447.28
  5. Step 5: Solve for x
    x = 361,658,010,447.28/550,893.87
  6. Step 6: Final answer
    x = 656,493.07

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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.