Home / 2,928,212.20-4,392,318.30-1,971,618.40

Finding the Fourth Proportional to 2,928,212.20, 4,392,318.30 and 1,971,618.40

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Solution

The fourth proportional to 2,928,212.20, 4,392,318.30 and 1,971,618.40 is: 2,957,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,212.20 : 4,392,318.30 = 1,971,618.40 : x
  2. Step 2: Convert to fraction form
    2,928,212.20/4,392,318.30 = 1,971,618.40/x
  3. Step 3: Cross multiply
    2,928,212.20x = 4,392,318.30 × 1,971,618.40
  4. Step 4: Simplify right side
    2,928,212.20x = 8,659,975,578,936.72
  5. Step 5: Solve for x
    x = 8,659,975,578,936.72/2,928,212.20
  6. Step 6: Final answer
    x = 2,957,427.60

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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.