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Finding the Fourth Proportional to 543,555.89, 815,350.91 and 259,277.33

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Solution

The fourth proportional to 543,555.89, 815,350.91 and 259,277.33 is: 388,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,555.89 : 815,350.91 = 259,277.33 : x
  2. Step 2: Convert to fraction form
    543,555.89/815,350.91 = 259,277.33/x
  3. Step 3: Cross multiply
    543,555.89x = 815,350.91 × 259,277.33
  4. Step 4: Simplify right side
    543,555.89x = 211,402,001,584.73
  5. Step 5: Solve for x
    x = 211,402,001,584.73/543,555.89
  6. Step 6: Final answer
    x = 388,924.13

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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.