Home / 436,930.20-654,083.10-259,345.80

Finding the Fourth Proportional to 436,930.20, 654,083.10 and 259,345.80

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Solution

The fourth proportional to 436,930.20, 654,083.10 and 259,345.80 is: 388,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,930.20 : 654,083.10 = 259,345.80 : x
  2. Step 2: Convert to fraction form
    436,930.20/654,083.10 = 259,345.80/x
  3. Step 3: Cross multiply
    436,930.20x = 654,083.10 × 259,345.80
  4. Step 4: Simplify right side
    436,930.20x = 169,633,704,835.98
  5. Step 5: Solve for x
    x = 169,633,704,835.98/436,930.20
  6. Step 6: Final answer
    x = 388,239.83

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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.