Home / 1,139,138.35-1,571,993.65-622,893.89

Finding the Fourth Proportional to 1,139,138.35, 1,571,993.65 and 622,893.89

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Solution

The fourth proportional to 1,139,138.35, 1,571,993.65 and 622,893.89 is: 859,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,138.35 : 1,571,993.65 = 622,893.89 : x
  2. Step 2: Convert to fraction form
    1,139,138.35/1,571,993.65 = 622,893.89/x
  3. Step 3: Cross multiply
    1,139,138.35x = 1,571,993.65 × 622,893.89
  4. Step 4: Simplify right side
    1,139,138.35x = 979,185,239,703.80
  5. Step 5: Solve for x
    x = 979,185,239,703.80/1,139,138.35
  6. Step 6: Final answer
    x = 859,584.12

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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.