Home / 1,921,821.98-2,865,782.56-1,904,520.25

Finding the Fourth Proportional to 1,921,821.98, 2,865,782.56 and 1,904,520.25

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Solution

The fourth proportional to 1,921,821.98, 2,865,782.56 and 1,904,520.25 is: 2,839,982.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,821.98 : 2,865,782.56 = 1,904,520.25 : x
  2. Step 2: Convert to fraction form
    1,921,821.98/2,865,782.56 = 1,904,520.25/x
  3. Step 3: Cross multiply
    1,921,821.98x = 2,865,782.56 × 1,904,520.25
  4. Step 4: Simplify right side
    1,921,821.98x = 5,457,940,917,616.84
  5. Step 5: Solve for x
    x = 5,457,940,917,616.84/1,921,821.98
  6. Step 6: Final answer
    x = 2,839,982.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.