Home / 1,214,712.19-1,821,881.38-405,110.85

Finding the Fourth Proportional to 1,214,712.19, 1,821,881.38 and 405,110.85

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Solution

The fourth proportional to 1,214,712.19, 1,821,881.38 and 405,110.85 is: 607,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,712.19 : 1,821,881.38 = 405,110.85 : x
  2. Step 2: Convert to fraction form
    1,214,712.19/1,821,881.38 = 405,110.85/x
  3. Step 3: Cross multiply
    1,214,712.19x = 1,821,881.38 × 405,110.85
  4. Step 4: Simplify right side
    1,214,712.19x = 738,063,914,450.97
  5. Step 5: Solve for x
    x = 738,063,914,450.97/1,214,712.19
  6. Step 6: Final answer
    x = 607,603.94

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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.