Home / 2,821,338-3,894,638.40-1,904,808.81

Finding the Fourth Proportional to 2,821,338, 3,894,638.40 and 1,904,808.81

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Solution

The fourth proportional to 2,821,338, 3,894,638.40 and 1,904,808.81 is: 2,629,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821,338 : 3,894,638.40 = 1,904,808.81 : x
  2. Step 2: Convert to fraction form
    2,821,338/3,894,638.40 = 1,904,808.81/x
  3. Step 3: Cross multiply
    2,821,338x = 3,894,638.40 × 1,904,808.81
  4. Step 4: Simplify right side
    2,821,338x = 7,418,541,536,084.30
  5. Step 5: Solve for x
    x = 7,418,541,536,084.30/2,821,338
  6. Step 6: Final answer
    x = 2,629,440.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.