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Finding the Fourth Proportional to 1,753,749.72, 2,630,797.38 and 728,868.60

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Solution

The fourth proportional to 1,753,749.72, 2,630,797.38 and 728,868.60 is: 1,093,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,749.72 : 2,630,797.38 = 728,868.60 : x
  2. Step 2: Convert to fraction form
    1,753,749.72/2,630,797.38 = 728,868.60/x
  3. Step 3: Cross multiply
    1,753,749.72x = 2,630,797.38 × 728,868.60
  4. Step 4: Simplify right side
    1,753,749.72x = 1,917,505,603,244.27
  5. Step 5: Solve for x
    x = 1,917,505,603,244.27/1,753,749.72
  6. Step 6: Final answer
    x = 1,093,374.72

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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.