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Finding the Fourth Proportional to 603,910.80, 833,378.76 and 331,978.32

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Solution

The fourth proportional to 603,910.80, 833,378.76 and 331,978.32 is: 458,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,910.80 : 833,378.76 = 331,978.32 : x
  2. Step 2: Convert to fraction form
    603,910.80/833,378.76 = 331,978.32/x
  3. Step 3: Cross multiply
    603,910.80x = 833,378.76 × 331,978.32
  4. Step 4: Simplify right side
    603,910.80x = 276,663,680,668.48
  5. Step 5: Solve for x
    x = 276,663,680,668.48/603,910.80
  6. Step 6: Final answer
    x = 458,120.11

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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.