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Finding the Fourth Proportional to 603,122.50, 903,305.94 and 287,800.84

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Solution

The fourth proportional to 603,122.50, 903,305.94 and 287,800.84 is: 431,043.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,122.50 : 903,305.94 = 287,800.84 : x
  2. Step 2: Convert to fraction form
    603,122.50/903,305.94 = 287,800.84/x
  3. Step 3: Cross multiply
    603,122.50x = 903,305.94 × 287,800.84
  4. Step 4: Simplify right side
    603,122.50x = 259,972,208,308.99
  5. Step 5: Solve for x
    x = 259,972,208,308.99/603,122.50
  6. Step 6: Final answer
    x = 431,043.79

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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.