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Finding the Fourth Proportional to 351,054.28, 526,876.82 and 328,910.90

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Solution

The fourth proportional to 351,054.28, 526,876.82 and 328,910.90 is: 493,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,054.28 : 526,876.82 = 328,910.90 : x
  2. Step 2: Convert to fraction form
    351,054.28/526,876.82 = 328,910.90/x
  3. Step 3: Cross multiply
    351,054.28x = 526,876.82 × 328,910.90
  4. Step 4: Simplify right side
    351,054.28x = 173,295,527,410.78
  5. Step 5: Solve for x
    x = 173,295,527,410.78/351,054.28
  6. Step 6: Final answer
    x = 493,643.12

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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.