Home / 858,782.73-1,288,376.39-259,748.85

Finding the Fourth Proportional to 858,782.73, 1,288,376.39 and 259,748.85

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Solution

The fourth proportional to 858,782.73, 1,288,376.39 and 259,748.85 is: 389,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,782.73 : 1,288,376.39 = 259,748.85 : x
  2. Step 2: Convert to fraction form
    858,782.73/1,288,376.39 = 259,748.85/x
  3. Step 3: Cross multiply
    858,782.73x = 1,288,376.39 × 259,748.85
  4. Step 4: Simplify right side
    858,782.73x = 334,654,285,669.65
  5. Step 5: Solve for x
    x = 334,654,285,669.65/858,782.73
  6. Step 6: Final answer
    x = 389,684.46

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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.