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Finding the Fourth Proportional to 490,858.80, 736,979.40 and 304,234.80

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Solution

The fourth proportional to 490,858.80, 736,979.40 and 304,234.80 is: 456,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,858.80 : 736,979.40 = 304,234.80 : x
  2. Step 2: Convert to fraction form
    490,858.80/736,979.40 = 304,234.80/x
  3. Step 3: Cross multiply
    490,858.80x = 736,979.40 × 304,234.80
  4. Step 4: Simplify right side
    490,858.80x = 224,214,780,363.12
  5. Step 5: Solve for x
    x = 224,214,780,363.12/490,858.80
  6. Step 6: Final answer
    x = 456,780.61

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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.