Home / 3,929,885-5,894,826.40-1,089,997.48

Finding the Fourth Proportional to 3,929,885, 5,894,826.40 and 1,089,997.48

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Solution

The fourth proportional to 3,929,885, 5,894,826.40 and 1,089,997.48 is: 1,634,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,885 : 5,894,826.40 = 1,089,997.48 : x
  2. Step 2: Convert to fraction form
    3,929,885/5,894,826.40 = 1,089,997.48/x
  3. Step 3: Cross multiply
    3,929,885x = 5,894,826.40 × 1,089,997.48
  4. Step 4: Simplify right side
    3,929,885x = 6,425,345,921,037.47
  5. Step 5: Solve for x
    x = 6,425,345,921,037.47/3,929,885
  6. Step 6: Final answer
    x = 1,634,995.91

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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.