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Finding the Fourth Proportional to 489,237.81, 675,153.83 and 271,450.58

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Solution

The fourth proportional to 489,237.81, 675,153.83 and 271,450.58 is: 374,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,237.81 : 675,153.83 = 271,450.58 : x
  2. Step 2: Convert to fraction form
    489,237.81/675,153.83 = 271,450.58/x
  3. Step 3: Cross multiply
    489,237.81x = 675,153.83 × 271,450.58
  4. Step 4: Simplify right side
    489,237.81x = 183,270,896,045.58
  5. Step 5: Solve for x
    x = 183,270,896,045.58/489,237.81
  6. Step 6: Final answer
    x = 374,604.93

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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.