Home / 1,939,411.86-2,907,121.72-860,432.56

Finding the Fourth Proportional to 1,939,411.86, 2,907,121.72 and 860,432.56

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Solution

The fourth proportional to 1,939,411.86, 2,907,121.72 and 860,432.56 is: 1,289,763.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,411.86 : 2,907,121.72 = 860,432.56 : x
  2. Step 2: Convert to fraction form
    1,939,411.86/2,907,121.72 = 860,432.56/x
  3. Step 3: Cross multiply
    1,939,411.86x = 2,907,121.72 × 860,432.56
  4. Step 4: Simplify right side
    1,939,411.86x = 2,501,382,183,771.20
  5. Step 5: Solve for x
    x = 2,501,382,183,771.20/1,939,411.86
  6. Step 6: Final answer
    x = 1,289,763.27

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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.