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Finding the Fourth Proportional to 1,789,705.88, 2,469,794.51 and 984,889.88

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Solution

The fourth proportional to 1,789,705.88, 2,469,794.51 and 984,889.88 is: 1,359,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,705.88 : 2,469,794.51 = 984,889.88 : x
  2. Step 2: Convert to fraction form
    1,789,705.88/2,469,794.51 = 984,889.88/x
  3. Step 3: Cross multiply
    1,789,705.88x = 2,469,794.51 × 984,889.88
  4. Step 4: Simplify right side
    1,789,705.88x = 2,432,475,618,578.56
  5. Step 5: Solve for x
    x = 2,432,475,618,578.56/1,789,705.88
  6. Step 6: Final answer
    x = 1,359,148.25

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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.