Home / 2,128,055.70-3,192,083.55-865,233.30

Finding the Fourth Proportional to 2,128,055.70, 3,192,083.55 and 865,233.30

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Solution

The fourth proportional to 2,128,055.70, 3,192,083.55 and 865,233.30 is: 1,297,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,055.70 : 3,192,083.55 = 865,233.30 : x
  2. Step 2: Convert to fraction form
    2,128,055.70/3,192,083.55 = 865,233.30/x
  3. Step 3: Cross multiply
    2,128,055.70x = 3,192,083.55 × 865,233.30
  4. Step 4: Simplify right side
    2,128,055.70x = 2,761,896,983,842.22
  5. Step 5: Solve for x
    x = 2,761,896,983,842.22/2,128,055.70
  6. Step 6: Final answer
    x = 1,297,849.95

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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.