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Finding the Fourth Proportional to 418,610.08, 628,425.64 and 276,576.73

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Solution

The fourth proportional to 418,610.08, 628,425.64 and 276,576.73 is: 415,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,610.08 : 628,425.64 = 276,576.73 : x
  2. Step 2: Convert to fraction form
    418,610.08/628,425.64 = 276,576.73/x
  3. Step 3: Cross multiply
    418,610.08x = 628,425.64 × 276,576.73
  4. Step 4: Simplify right side
    418,610.08x = 173,807,907,334.01
  5. Step 5: Solve for x
    x = 173,807,907,334.01/418,610.08
  6. Step 6: Final answer
    x = 415,202.40

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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.