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Finding the Fourth Proportional to 555,496.44, 766,915.45 and 351,722.03

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Solution

The fourth proportional to 555,496.44, 766,915.45 and 351,722.03 is: 485,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,496.44 : 766,915.45 = 351,722.03 : x
  2. Step 2: Convert to fraction form
    555,496.44/766,915.45 = 351,722.03/x
  3. Step 3: Cross multiply
    555,496.44x = 766,915.45 × 351,722.03
  4. Step 4: Simplify right side
    555,496.44x = 269,741,058,912.36
  5. Step 5: Solve for x
    x = 269,741,058,912.36/555,496.44
  6. Step 6: Final answer
    x = 485,585.58

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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.