Home / 1,943,999.80-2,915,999.70-1,188,172.60

Finding the Fourth Proportional to 1,943,999.80, 2,915,999.70 and 1,188,172.60

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Solution

The fourth proportional to 1,943,999.80, 2,915,999.70 and 1,188,172.60 is: 1,782,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,999.80 : 2,915,999.70 = 1,188,172.60 : x
  2. Step 2: Convert to fraction form
    1,943,999.80/2,915,999.70 = 1,188,172.60/x
  3. Step 3: Cross multiply
    1,943,999.80x = 2,915,999.70 × 1,188,172.60
  4. Step 4: Simplify right side
    1,943,999.80x = 3,464,710,945,148.22
  5. Step 5: Solve for x
    x = 3,464,710,945,148.22/1,943,999.80
  6. Step 6: Final answer
    x = 1,782,258.90

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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.