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Finding the Fourth Proportional to 603,435, 905,943.54 and 404,644.92

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Solution

The fourth proportional to 603,435, 905,943.54 and 404,644.92 is: 607,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,435 : 905,943.54 = 404,644.92 : x
  2. Step 2: Convert to fraction form
    603,435/905,943.54 = 404,644.92/x
  3. Step 3: Cross multiply
    603,435x = 905,943.54 × 404,644.92
  4. Step 4: Simplify right side
    603,435x = 366,585,451,267.82
  5. Step 5: Solve for x
    x = 366,585,451,267.82/603,435
  6. Step 6: Final answer
    x = 607,497.83

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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.