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Finding the Fourth Proportional to 489,440.94, 734,005.89 and 332,676.78

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Solution

The fourth proportional to 489,440.94, 734,005.89 and 332,676.78 is: 498,909.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,440.94 : 734,005.89 = 332,676.78 : x
  2. Step 2: Convert to fraction form
    489,440.94/734,005.89 = 332,676.78/x
  3. Step 3: Cross multiply
    489,440.94x = 734,005.89 × 332,676.78
  4. Step 4: Simplify right side
    489,440.94x = 244,186,715,986.23
  5. Step 5: Solve for x
    x = 244,186,715,986.23/489,440.94
  6. Step 6: Final answer
    x = 498,909.46

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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.