Home / 1,380,336.72-1,904,879.88-760,211.52

Finding the Fourth Proportional to 1,380,336.72, 1,904,879.88 and 760,211.52

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Solution

The fourth proportional to 1,380,336.72, 1,904,879.88 and 760,211.52 is: 1,049,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,336.72 : 1,904,879.88 = 760,211.52 : x
  2. Step 2: Convert to fraction form
    1,380,336.72/1,904,879.88 = 760,211.52/x
  3. Step 3: Cross multiply
    1,380,336.72x = 1,904,879.88 × 760,211.52
  4. Step 4: Simplify right side
    1,380,336.72x = 1,448,111,628,992.22
  5. Step 5: Solve for x
    x = 1,448,111,628,992.22/1,380,336.72
  6. Step 6: Final answer
    x = 1,049,100.27

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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.