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Finding the Fourth Proportional to 489,935.36, 676,058.46 and 275,099

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Solution

The fourth proportional to 489,935.36, 676,058.46 and 275,099 is: 379,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,935.36 : 676,058.46 = 275,099 : x
  2. Step 2: Convert to fraction form
    489,935.36/676,058.46 = 275,099/x
  3. Step 3: Cross multiply
    489,935.36x = 676,058.46 × 275,099
  4. Step 4: Simplify right side
    489,935.36x = 185,983,006,287.54
  5. Step 5: Solve for x
    x = 185,983,006,287.54/489,935.36
  6. Step 6: Final answer
    x = 379,607.23

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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.