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Finding the Fourth Proportional to 490,621.32, 735,180.75 and 330,102.63

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Solution

The fourth proportional to 490,621.32, 735,180.75 and 330,102.63 is: 494,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,621.32 : 735,180.75 = 330,102.63 : x
  2. Step 2: Convert to fraction form
    490,621.32/735,180.75 = 330,102.63/x
  3. Step 3: Cross multiply
    490,621.32x = 735,180.75 × 330,102.63
  4. Step 4: Simplify right side
    490,621.32x = 242,685,099,100.37
  5. Step 5: Solve for x
    x = 242,685,099,100.37/490,621.32
  6. Step 6: Final answer
    x = 494,648.50

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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.