Home / 3,907,346.87-5,861,587.75-1,211,889.20

Finding the Fourth Proportional to 3,907,346.87, 5,861,587.75 and 1,211,889.20

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Solution

The fourth proportional to 3,907,346.87, 5,861,587.75 and 1,211,889.20 is: 1,818,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907,346.87 : 5,861,587.75 = 1,211,889.20 : x
  2. Step 2: Convert to fraction form
    3,907,346.87/5,861,587.75 = 1,211,889.20/x
  3. Step 3: Cross multiply
    3,907,346.87x = 5,861,587.75 × 1,211,889.20
  4. Step 4: Simplify right side
    3,907,346.87x = 7,103,594,856,739.64
  5. Step 5: Solve for x
    x = 7,103,594,856,739.64/3,907,346.87
  6. Step 6: Final answer
    x = 1,818,009.79

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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.