Home / 3,947,439.60-5,921,370.72-1,251,969.48

Finding the Fourth Proportional to 3,947,439.60, 5,921,370.72 and 1,251,969.48

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Solution

The fourth proportional to 3,947,439.60, 5,921,370.72 and 1,251,969.48 is: 1,878,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,439.60 : 5,921,370.72 = 1,251,969.48 : x
  2. Step 2: Convert to fraction form
    3,947,439.60/5,921,370.72 = 1,251,969.48/x
  3. Step 3: Cross multiply
    3,947,439.60x = 5,921,370.72 × 1,251,969.48
  4. Step 4: Simplify right side
    3,947,439.60x = 7,413,375,421,205.63
  5. Step 5: Solve for x
    x = 7,413,375,421,205.63/3,947,439.60
  6. Step 6: Final answer
    x = 1,878,021.24

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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.