Home / 3,148,907.20-4,725,693.60-1,257,006.40

Finding the Fourth Proportional to 3,148,907.20, 4,725,693.60 and 1,257,006.40

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Solution

The fourth proportional to 3,148,907.20, 4,725,693.60 and 1,257,006.40 is: 1,886,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148,907.20 : 4,725,693.60 = 1,257,006.40 : x
  2. Step 2: Convert to fraction form
    3,148,907.20/4,725,693.60 = 1,257,006.40/x
  3. Step 3: Cross multiply
    3,148,907.20x = 4,725,693.60 × 1,257,006.40
  4. Step 4: Simplify right side
    3,148,907.20x = 5,940,227,099,639.04
  5. Step 5: Solve for x
    x = 5,940,227,099,639.04/3,148,907.20
  6. Step 6: Final answer
    x = 1,886,440.83

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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.