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Finding the Fourth Proportional to 1,821,492, 2,732,369.22 and 699,561

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Solution

The fourth proportional to 1,821,492, 2,732,369.22 and 699,561 is: 1,049,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,492 : 2,732,369.22 = 699,561 : x
  2. Step 2: Convert to fraction form
    1,821,492/2,732,369.22 = 699,561/x
  3. Step 3: Cross multiply
    1,821,492x = 2,732,369.22 × 699,561
  4. Step 4: Simplify right side
    1,821,492x = 1,911,458,943,912.42
  5. Step 5: Solve for x
    x = 1,911,458,943,912.42/1,821,492
  6. Step 6: Final answer
    x = 1,049,391.90

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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.