Home / 1,188,105.60-1,778,221.80-1,093,627.20

Finding the Fourth Proportional to 1,188,105.60, 1,778,221.80 and 1,093,627.20

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Solution

The fourth proportional to 1,188,105.60, 1,778,221.80 and 1,093,627.20 is: 1,636,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,105.60 : 1,778,221.80 = 1,093,627.20 : x
  2. Step 2: Convert to fraction form
    1,188,105.60/1,778,221.80 = 1,093,627.20/x
  3. Step 3: Cross multiply
    1,188,105.60x = 1,778,221.80 × 1,093,627.20
  4. Step 4: Simplify right side
    1,188,105.60x = 1,944,711,728,112.96
  5. Step 5: Solve for x
    x = 1,944,711,728,112.96/1,188,105.60
  6. Step 6: Final answer
    x = 1,636,817.24

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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.