Home / 3,991,072.32-5,987,001.24-1,073,128.86

Finding the Fourth Proportional to 3,991,072.32, 5,987,001.24 and 1,073,128.86

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Solution

The fourth proportional to 3,991,072.32, 5,987,001.24 and 1,073,128.86 is: 1,609,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,072.32 : 5,987,001.24 = 1,073,128.86 : x
  2. Step 2: Convert to fraction form
    3,991,072.32/5,987,001.24 = 1,073,128.86/x
  3. Step 3: Cross multiply
    3,991,072.32x = 5,987,001.24 × 1,073,128.86
  4. Step 4: Simplify right side
    3,991,072.32x = 6,424,823,815,499.79
  5. Step 5: Solve for x
    x = 6,424,823,815,499.79/3,991,072.32
  6. Step 6: Final answer
    x = 1,609,798.90

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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.