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Finding the Fourth Proportional to 603,890.30, 833,378.96 and 331,969.65

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Solution

The fourth proportional to 603,890.30, 833,378.96 and 331,969.65 is: 458,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,890.30 : 833,378.96 = 331,969.65 : x
  2. Step 2: Convert to fraction form
    603,890.30/833,378.96 = 331,969.65/x
  3. Step 3: Cross multiply
    603,890.30x = 833,378.96 × 331,969.65
  4. Step 4: Simplify right side
    603,890.30x = 276,656,521,668.56
  5. Step 5: Solve for x
    x = 276,656,521,668.56/603,890.30
  6. Step 6: Final answer
    x = 458,123.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.