Home / 1,214,640.80-1,821,961.20-654,768.80

Finding the Fourth Proportional to 1,214,640.80, 1,821,961.20 and 654,768.80

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Solution

The fourth proportional to 1,214,640.80, 1,821,961.20 and 654,768.80 is: 982,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,640.80 : 1,821,961.20 = 654,768.80 : x
  2. Step 2: Convert to fraction form
    1,214,640.80/1,821,961.20 = 654,768.80/x
  3. Step 3: Cross multiply
    1,214,640.80x = 1,821,961.20 × 654,768.80
  4. Step 4: Simplify right side
    1,214,640.80x = 1,192,963,348,570.56
  5. Step 5: Solve for x
    x = 1,192,963,348,570.56/1,214,640.80
  6. Step 6: Final answer
    x = 982,153.20

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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.