Home / 1,863,126.20-2,792,846.10-915,721.40

Finding the Fourth Proportional to 1,863,126.20, 2,792,846.10 and 915,721.40

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Solution

The fourth proportional to 1,863,126.20, 2,792,846.10 and 915,721.40 is: 1,372,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863,126.20 : 2,792,846.10 = 915,721.40 : x
  2. Step 2: Convert to fraction form
    1,863,126.20/2,792,846.10 = 915,721.40/x
  3. Step 3: Cross multiply
    1,863,126.20x = 2,792,846.10 × 915,721.40
  4. Step 4: Simplify right side
    1,863,126.20x = 2,557,468,940,676.54
  5. Step 5: Solve for x
    x = 2,557,468,940,676.54/1,863,126.20
  6. Step 6: Final answer
    x = 1,372,676.17

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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.