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Finding the Fourth Proportional to 603,911.25, 833,408.06 and 331,990.61

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Solution

The fourth proportional to 603,911.25, 833,408.06 and 331,990.61 is: 458,152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,911.25 : 833,408.06 = 331,990.61 : x
  2. Step 2: Convert to fraction form
    603,911.25/833,408.06 = 331,990.61/x
  3. Step 3: Cross multiply
    603,911.25x = 833,408.06 × 331,990.61
  4. Step 4: Simplify right side
    603,911.25x = 276,683,644,391.32
  5. Step 5: Solve for x
    x = 276,683,644,391.32/603,911.25
  6. Step 6: Final answer
    x = 458,152.82

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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.