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Finding the Fourth Proportional to 489,833.88, 734,611.59 and 190,250.52

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Solution

The fourth proportional to 489,833.88, 734,611.59 and 190,250.52 is: 285,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,833.88 : 734,611.59 = 190,250.52 : x
  2. Step 2: Convert to fraction form
    489,833.88/734,611.59 = 190,250.52/x
  3. Step 3: Cross multiply
    489,833.88x = 734,611.59 × 190,250.52
  4. Step 4: Simplify right side
    489,833.88x = 139,760,236,995.53
  5. Step 5: Solve for x
    x = 139,760,236,995.53/489,833.88
  6. Step 6: Final answer
    x = 285,321.70

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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.