Home / 1,138,458.75-1,571,109.21-622,201.32

Finding the Fourth Proportional to 1,138,458.75, 1,571,109.21 and 622,201.32

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Solution

The fourth proportional to 1,138,458.75, 1,571,109.21 and 622,201.32 is: 858,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,458.75 : 1,571,109.21 = 622,201.32 : x
  2. Step 2: Convert to fraction form
    1,138,458.75/1,571,109.21 = 622,201.32/x
  3. Step 3: Cross multiply
    1,138,458.75x = 1,571,109.21 × 622,201.32
  4. Step 4: Simplify right side
    1,138,458.75x = 977,546,224,326.16
  5. Step 5: Solve for x
    x = 977,546,224,326.16/1,138,458.75
  6. Step 6: Final answer
    x = 858,657.57

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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.