Home / 1,211,445.62-1,817,161.89-698,778.48

Finding the Fourth Proportional to 1,211,445.62, 1,817,161.89 and 698,778.48

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Solution

The fourth proportional to 1,211,445.62, 1,817,161.89 and 698,778.48 is: 1,048,163.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,445.62 : 1,817,161.89 = 698,778.48 : x
  2. Step 2: Convert to fraction form
    1,211,445.62/1,817,161.89 = 698,778.48/x
  3. Step 3: Cross multiply
    1,211,445.62x = 1,817,161.89 × 698,778.48
  4. Step 4: Simplify right side
    1,211,445.62x = 1,269,793,610,828.43
  5. Step 5: Solve for x
    x = 1,269,793,610,828.43/1,211,445.62
  6. Step 6: Final answer
    x = 1,048,163.94

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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.