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Finding the Fourth Proportional to 490,681.20, 735,270.69 and 330,162.66

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Solution

The fourth proportional to 490,681.20, 735,270.69 and 330,162.66 is: 494,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,681.20 : 735,270.69 = 330,162.66 : x
  2. Step 2: Convert to fraction form
    490,681.20/735,270.69 = 330,162.66/x
  3. Step 3: Cross multiply
    490,681.20x = 735,270.69 × 330,162.66
  4. Step 4: Simplify right side
    490,681.20x = 242,758,926,830.44
  5. Step 5: Solve for x
    x = 242,758,926,830.44/490,681.20
  6. Step 6: Final answer
    x = 494,738.59

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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.