Home / 1,188,175.69-1,782,075.13-378,455.03

Finding the Fourth Proportional to 1,188,175.69, 1,782,075.13 and 378,455.03

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Solution

The fourth proportional to 1,188,175.69, 1,782,075.13 and 378,455.03 is: 567,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,175.69 : 1,782,075.13 = 378,455.03 : x
  2. Step 2: Convert to fraction form
    1,188,175.69/1,782,075.13 = 378,455.03/x
  3. Step 3: Cross multiply
    1,188,175.69x = 1,782,075.13 × 378,455.03
  4. Step 4: Simplify right side
    1,188,175.69x = 674,435,303,636.85
  5. Step 5: Solve for x
    x = 674,435,303,636.85/1,188,175.69
  6. Step 6: Final answer
    x = 567,622.54

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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.