Home / 1,211,861.70-1,817,792.55-739,469.70

Finding the Fourth Proportional to 1,211,861.70, 1,817,792.55 and 739,469.70

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Solution

The fourth proportional to 1,211,861.70, 1,817,792.55 and 739,469.70 is: 1,109,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,861.70 : 1,817,792.55 = 739,469.70 : x
  2. Step 2: Convert to fraction form
    1,211,861.70/1,817,792.55 = 739,469.70/x
  3. Step 3: Cross multiply
    1,211,861.70x = 1,817,792.55 × 739,469.70
  4. Step 4: Simplify right side
    1,211,861.70x = 1,344,202,511,610.73
  5. Step 5: Solve for x
    x = 1,344,202,511,610.73/1,211,861.70
  6. Step 6: Final answer
    x = 1,109,204.55

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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.