Home / 1,214,137.20-1,821,716.10-652,515.60

Finding the Fourth Proportional to 1,214,137.20, 1,821,716.10 and 652,515.60

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Solution

The fourth proportional to 1,214,137.20, 1,821,716.10 and 652,515.60 is: 979,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,137.20 : 1,821,716.10 = 652,515.60 : x
  2. Step 2: Convert to fraction form
    1,214,137.20/1,821,716.10 = 652,515.60/x
  3. Step 3: Cross multiply
    1,214,137.20x = 1,821,716.10 × 652,515.60
  4. Step 4: Simplify right side
    1,214,137.20x = 1,188,698,174,021.16
  5. Step 5: Solve for x
    x = 1,188,698,174,021.16/1,214,137.20
  6. Step 6: Final answer
    x = 979,047.65

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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.