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Finding the Fourth Proportional to 1,789,760.70, 2,469,870.18 and 984,944.70

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Solution

The fourth proportional to 1,789,760.70, 2,469,870.18 and 984,944.70 is: 1,359,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,760.70 : 2,469,870.18 = 984,944.70 : x
  2. Step 2: Convert to fraction form
    1,789,760.70/2,469,870.18 = 984,944.70/x
  3. Step 3: Cross multiply
    1,789,760.70x = 2,469,870.18 × 984,944.70
  4. Step 4: Simplify right side
    1,789,760.70x = 2,432,685,543,479.05
  5. Step 5: Solve for x
    x = 2,432,685,543,479.05/1,789,760.70
  6. Step 6: Final answer
    x = 1,359,223.91

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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.