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Finding the Fourth Proportional to 559,355.78, 838,471.88 and 179,997.72

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Solution

The fourth proportional to 559,355.78, 838,471.88 and 179,997.72 is: 269,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,355.78 : 838,471.88 = 179,997.72 : x
  2. Step 2: Convert to fraction form
    559,355.78/838,471.88 = 179,997.72/x
  3. Step 3: Cross multiply
    559,355.78x = 838,471.88 × 179,997.72
  4. Step 4: Simplify right side
    559,355.78x = 150,923,026,684.11
  5. Step 5: Solve for x
    x = 150,923,026,684.11/559,355.78
  6. Step 6: Final answer
    x = 269,815.80

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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.