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Finding the Fourth Proportional to 564,997.73, 779,702.53 and 306,879.72

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Solution

The fourth proportional to 564,997.73, 779,702.53 and 306,879.72 is: 423,497.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,997.73 : 779,702.53 = 306,879.72 : x
  2. Step 2: Convert to fraction form
    564,997.73/779,702.53 = 306,879.72/x
  3. Step 3: Cross multiply
    564,997.73x = 779,702.53 × 306,879.72
  4. Step 4: Simplify right side
    564,997.73x = 239,274,892,067.98
  5. Step 5: Solve for x
    x = 239,274,892,067.98/564,997.73
  6. Step 6: Final answer
    x = 423,497.09

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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.