Home / 2,801,099.70-4,200,665.40-1,285,508.70

Finding the Fourth Proportional to 2,801,099.70, 4,200,665.40 and 1,285,508.70

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Solution

The fourth proportional to 2,801,099.70, 4,200,665.40 and 1,285,508.70 is: 1,927,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801,099.70 : 4,200,665.40 = 1,285,508.70 : x
  2. Step 2: Convert to fraction form
    2,801,099.70/4,200,665.40 = 1,285,508.70/x
  3. Step 3: Cross multiply
    2,801,099.70x = 4,200,665.40 × 1,285,508.70
  4. Step 4: Simplify right side
    2,801,099.70x = 5,399,991,917,488.98
  5. Step 5: Solve for x
    x = 5,399,991,917,488.98/2,801,099.70
  6. Step 6: Final answer
    x = 1,927,811.39

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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.