Home / 3,912,143.78-5,867,586.20-1,071,591.86

Finding the Fourth Proportional to 3,912,143.78, 5,867,586.20 and 1,071,591.86

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Solution

The fourth proportional to 3,912,143.78, 5,867,586.20 and 1,071,591.86 is: 1,607,215.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912,143.78 : 5,867,586.20 = 1,071,591.86 : x
  2. Step 2: Convert to fraction form
    3,912,143.78/5,867,586.20 = 1,071,591.86/x
  3. Step 3: Cross multiply
    3,912,143.78x = 5,867,586.20 × 1,071,591.86
  4. Step 4: Simplify right side
    3,912,143.78x = 6,287,657,609,768.33
  5. Step 5: Solve for x
    x = 6,287,657,609,768.33/3,912,143.78
  6. Step 6: Final answer
    x = 1,607,215.37

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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.