Home / 892,866.72-1,339,350.66-285,708.42

Finding the Fourth Proportional to 892,866.72, 1,339,350.66 and 285,708.42

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Solution

The fourth proportional to 892,866.72, 1,339,350.66 and 285,708.42 is: 428,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,866.72 : 1,339,350.66 = 285,708.42 : x
  2. Step 2: Convert to fraction form
    892,866.72/1,339,350.66 = 285,708.42/x
  3. Step 3: Cross multiply
    892,866.72x = 1,339,350.66 × 285,708.42
  4. Step 4: Simplify right side
    892,866.72x = 382,663,760,894.56
  5. Step 5: Solve for x
    x = 382,663,760,894.56/892,866.72
  6. Step 6: Final answer
    x = 428,578.82

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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.