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Finding the Fourth Proportional to 489,277.98, 734,103.78 and 189,968.71

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Solution

The fourth proportional to 489,277.98, 734,103.78 and 189,968.71 is: 285,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,277.98 : 734,103.78 = 189,968.71 : x
  2. Step 2: Convert to fraction form
    489,277.98/734,103.78 = 189,968.71/x
  3. Step 3: Cross multiply
    489,277.98x = 734,103.78 × 189,968.71
  4. Step 4: Simplify right side
    489,277.98x = 139,456,748,092.72
  5. Step 5: Solve for x
    x = 139,456,748,092.72/489,277.98
  6. Step 6: Final answer
    x = 285,025.60

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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.