Home / 2,128,343.56-3,193,636.32-1,230,416.03

Finding the Fourth Proportional to 2,128,343.56, 3,193,636.32 and 1,230,416.03

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Solution

The fourth proportional to 2,128,343.56, 3,193,636.32 and 1,230,416.03 is: 1,846,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,343.56 : 3,193,636.32 = 1,230,416.03 : x
  2. Step 2: Convert to fraction form
    2,128,343.56/3,193,636.32 = 1,230,416.03/x
  3. Step 3: Cross multiply
    2,128,343.56x = 3,193,636.32 × 1,230,416.03
  4. Step 4: Simplify right side
    2,128,343.56x = 3,929,501,322,118.21
  5. Step 5: Solve for x
    x = 3,929,501,322,118.21/2,128,343.56
  6. Step 6: Final answer
    x = 1,846,272.10

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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.