Home / 1,383,075.18-1,907,570.52-1,228,189.38

Finding the Fourth Proportional to 1,383,075.18, 1,907,570.52 and 1,228,189.38

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Solution

The fourth proportional to 1,383,075.18, 1,907,570.52 and 1,228,189.38 is: 1,693,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,075.18 : 1,907,570.52 = 1,228,189.38 : x
  2. Step 2: Convert to fraction form
    1,383,075.18/1,907,570.52 = 1,228,189.38/x
  3. Step 3: Cross multiply
    1,383,075.18x = 1,907,570.52 × 1,228,189.38
  4. Step 4: Simplify right side
    1,383,075.18x = 2,342,857,854,265.08
  5. Step 5: Solve for x
    x = 2,342,857,854,265.08/1,383,075.18
  6. Step 6: Final answer
    x = 1,693,948.30

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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.