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Finding the Fourth Proportional to 555,490.44, 766,576.08 and 300,842.64

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Solution

The fourth proportional to 555,490.44, 766,576.08 and 300,842.64 is: 415,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,490.44 : 766,576.08 = 300,842.64 : x
  2. Step 2: Convert to fraction form
    555,490.44/766,576.08 = 300,842.64/x
  3. Step 3: Cross multiply
    555,490.44x = 766,576.08 × 300,842.64
  4. Step 4: Simplify right side
    555,490.44x = 230,618,771,668.05
  5. Step 5: Solve for x
    x = 230,618,771,668.05/555,490.44
  6. Step 6: Final answer
    x = 415,162.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.