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Finding the Fourth Proportional to 576,342.57, 864,939.11 and 276,995.73

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Solution

The fourth proportional to 576,342.57, 864,939.11 and 276,995.73 is: 415,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,342.57 : 864,939.11 = 276,995.73 : x
  2. Step 2: Convert to fraction form
    576,342.57/864,939.11 = 276,995.73/x
  3. Step 3: Cross multiply
    576,342.57x = 864,939.11 × 276,995.73
  4. Step 4: Simplify right side
    576,342.57x = 239,584,438,795.02
  5. Step 5: Solve for x
    x = 239,584,438,795.02/576,342.57
  6. Step 6: Final answer
    x = 415,697.97

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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.