Home / 1,926,667.20-2,886,890.40-1,215,422.40

Finding the Fourth Proportional to 1,926,667.20, 2,886,890.40 and 1,215,422.40

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Solution

The fourth proportional to 1,926,667.20, 2,886,890.40 and 1,215,422.40 is: 1,821,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,667.20 : 2,886,890.40 = 1,215,422.40 : x
  2. Step 2: Convert to fraction form
    1,926,667.20/2,886,890.40 = 1,215,422.40/x
  3. Step 3: Cross multiply
    1,926,667.20x = 2,886,890.40 × 1,215,422.40
  4. Step 4: Simplify right side
    1,926,667.20x = 3,508,791,258,504.96
  5. Step 5: Solve for x
    x = 3,508,791,258,504.96/1,926,667.20
  6. Step 6: Final answer
    x = 1,821,171.43

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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.