Home / 1,380,120.75-1,904,629.10-799,369.22

Finding the Fourth Proportional to 1,380,120.75, 1,904,629.10 and 799,369.22

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Solution

The fourth proportional to 1,380,120.75, 1,904,629.10 and 799,369.22 is: 1,103,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,120.75 : 1,904,629.10 = 799,369.22 : x
  2. Step 2: Convert to fraction form
    1,380,120.75/1,904,629.10 = 799,369.22/x
  3. Step 3: Cross multiply
    1,380,120.75x = 1,904,629.10 × 799,369.22
  4. Step 4: Simplify right side
    1,380,120.75x = 1,522,501,878,638.86
  5. Step 5: Solve for x
    x = 1,522,501,878,638.86/1,380,120.75
  6. Step 6: Final answer
    x = 1,103,165.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.