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Finding the Fourth Proportional to 489,497.88, 734,254.92 and 134,509.71

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Solution

The fourth proportional to 489,497.88, 734,254.92 and 134,509.71 is: 201,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,497.88 : 734,254.92 = 134,509.71 : x
  2. Step 2: Convert to fraction form
    489,497.88/734,254.92 = 134,509.71/x
  3. Step 3: Cross multiply
    489,497.88x = 734,254.92 × 134,509.71
  4. Step 4: Simplify right side
    489,497.88x = 98,764,416,355.27
  5. Step 5: Solve for x
    x = 98,764,416,355.27/489,497.88
  6. Step 6: Final answer
    x = 201,766.79

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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.