Home / 3,158,021.05-4,739,147.53-1,108,687.68

Finding the Fourth Proportional to 3,158,021.05, 4,739,147.53 and 1,108,687.68

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Solution

The fourth proportional to 3,158,021.05, 4,739,147.53 and 1,108,687.68 is: 1,663,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158,021.05 : 4,739,147.53 = 1,108,687.68 : x
  2. Step 2: Convert to fraction form
    3,158,021.05/4,739,147.53 = 1,108,687.68/x
  3. Step 3: Cross multiply
    3,158,021.05x = 4,739,147.53 × 1,108,687.68
  4. Step 4: Simplify right side
    3,158,021.05x = 5,254,234,480,213.43
  5. Step 5: Solve for x
    x = 5,254,234,480,213.43/3,158,021.05
  6. Step 6: Final answer
    x = 1,663,774.37

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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.