Home / 1,247,660.40-1,867,991.40-1,212,668.40

Finding the Fourth Proportional to 1,247,660.40, 1,867,991.40 and 1,212,668.40

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Solution

The fourth proportional to 1,247,660.40, 1,867,991.40 and 1,212,668.40 is: 1,815,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,660.40 : 1,867,991.40 = 1,212,668.40 : x
  2. Step 2: Convert to fraction form
    1,247,660.40/1,867,991.40 = 1,212,668.40/x
  3. Step 3: Cross multiply
    1,247,660.40x = 1,867,991.40 × 1,212,668.40
  4. Step 4: Simplify right side
    1,247,660.40x = 2,265,254,142,251.76
  5. Step 5: Solve for x
    x = 2,265,254,142,251.76/1,247,660.40
  6. Step 6: Final answer
    x = 1,815,601.54

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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.