Home / 759,287.76-1,138,500.32-309,481.80

Finding the Fourth Proportional to 759,287.76, 1,138,500.32 and 309,481.80

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Solution

The fourth proportional to 759,287.76, 1,138,500.32 and 309,481.80 is: 464,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,287.76 : 1,138,500.32 = 309,481.80 : x
  2. Step 2: Convert to fraction form
    759,287.76/1,138,500.32 = 309,481.80/x
  3. Step 3: Cross multiply
    759,287.76x = 1,138,500.32 × 309,481.80
  4. Step 4: Simplify right side
    759,287.76x = 352,345,126,786.77
  5. Step 5: Solve for x
    x = 352,345,126,786.77/759,287.76
  6. Step 6: Final answer
    x = 464,046.89

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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.