Home / 2,819,148.78-3,890,454.39-1,530,000.30

Finding the Fourth Proportional to 2,819,148.78, 3,890,454.39 and 1,530,000.30

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Solution

The fourth proportional to 2,819,148.78, 3,890,454.39 and 1,530,000.30 is: 2,111,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,148.78 : 3,890,454.39 = 1,530,000.30 : x
  2. Step 2: Convert to fraction form
    2,819,148.78/3,890,454.39 = 1,530,000.30/x
  3. Step 3: Cross multiply
    2,819,148.78x = 3,890,454.39 × 1,530,000.30
  4. Step 4: Simplify right side
    2,819,148.78x = 5,952,396,383,836.32
  5. Step 5: Solve for x
    x = 5,952,396,383,836.32/2,819,148.78
  6. Step 6: Final answer
    x = 2,111,416.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.