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Finding the Fourth Proportional to 489,529.45, 675,562.29 and 274,685.41

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Solution

The fourth proportional to 489,529.45, 675,562.29 and 274,685.41 is: 379,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,529.45 : 675,562.29 = 274,685.41 : x
  2. Step 2: Convert to fraction form
    489,529.45/675,562.29 = 274,685.41/x
  3. Step 3: Cross multiply
    489,529.45x = 675,562.29 × 274,685.41
  4. Step 4: Simplify right side
    489,529.45x = 185,567,104,609.19
  5. Step 5: Solve for x
    x = 185,567,104,609.19/489,529.45
  6. Step 6: Final answer
    x = 379,072.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.