Home / 1,918,684.20-2,879,063.10-853,890.60

Finding the Fourth Proportional to 1,918,684.20, 2,879,063.10 and 853,890.60

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Solution

The fourth proportional to 1,918,684.20, 2,879,063.10 and 853,890.60 is: 1,281,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,684.20 : 2,879,063.10 = 853,890.60 : x
  2. Step 2: Convert to fraction form
    1,918,684.20/2,879,063.10 = 853,890.60/x
  3. Step 3: Cross multiply
    1,918,684.20x = 2,879,063.10 × 853,890.60
  4. Step 4: Simplify right side
    1,918,684.20x = 2,458,404,917,896.86
  5. Step 5: Solve for x
    x = 2,458,404,917,896.86/1,918,684.20
  6. Step 6: Final answer
    x = 1,281,297.32

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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.