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Finding the Fourth Proportional to 603,436, 905,945.04 and 404,645.92

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Solution

The fourth proportional to 603,436, 905,945.04 and 404,645.92 is: 607,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,436 : 905,945.04 = 404,645.92 : x
  2. Step 2: Convert to fraction form
    603,436/905,945.04 = 404,645.92/x
  3. Step 3: Cross multiply
    603,436x = 905,945.04 × 404,645.92
  4. Step 4: Simplify right side
    603,436x = 366,586,964,180.24
  5. Step 5: Solve for x
    x = 366,586,964,180.24/603,436
  6. Step 6: Final answer
    x = 607,499.33

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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.