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Finding the Fourth Proportional to 618,325.92, 927,313.92 and 281,178

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Solution

The fourth proportional to 618,325.92, 927,313.92 and 281,178 is: 421,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,325.92 : 927,313.92 = 281,178 : x
  2. Step 2: Convert to fraction form
    618,325.92/927,313.92 = 281,178/x
  3. Step 3: Cross multiply
    618,325.92x = 927,313.92 × 281,178
  4. Step 4: Simplify right side
    618,325.92x = 260,740,273,397.76
  5. Step 5: Solve for x
    x = 260,740,273,397.76/618,325.92
  6. Step 6: Final answer
    x = 421,687.44

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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.