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Finding the Fourth Proportional to 1,166,427, 1,749,640.50 and 279,963

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Solution

The fourth proportional to 1,166,427, 1,749,640.50 and 279,963 is: 419,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,427 : 1,749,640.50 = 279,963 : x
  2. Step 2: Convert to fraction form
    1,166,427/1,749,640.50 = 279,963/x
  3. Step 3: Cross multiply
    1,166,427x = 1,749,640.50 × 279,963
  4. Step 4: Simplify right side
    1,166,427x = 489,834,603,301.50
  5. Step 5: Solve for x
    x = 489,834,603,301.50/1,166,427
  6. Step 6: Final answer
    x = 419,944.50

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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.