Home / 1,257,792.96-1,886,667.12-311,163.60

Finding the Fourth Proportional to 1,257,792.96, 1,886,667.12 and 311,163.60

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Solution

The fourth proportional to 1,257,792.96, 1,886,667.12 and 311,163.60 is: 466,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,792.96 : 1,886,667.12 = 311,163.60 : x
  2. Step 2: Convert to fraction form
    1,257,792.96/1,886,667.12 = 311,163.60/x
  3. Step 3: Cross multiply
    1,257,792.96x = 1,886,667.12 × 311,163.60
  4. Step 4: Simplify right side
    1,257,792.96x = 587,062,133,060.83
  5. Step 5: Solve for x
    x = 587,062,133,060.83/1,257,792.96
  6. Step 6: Final answer
    x = 466,739.88

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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.