Home / 1,918,630.35-2,647,640.43-1,059,172.20

Finding the Fourth Proportional to 1,918,630.35, 2,647,640.43 and 1,059,172.20

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Solution

The fourth proportional to 1,918,630.35, 2,647,640.43 and 1,059,172.20 is: 1,461,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,630.35 : 2,647,640.43 = 1,059,172.20 : x
  2. Step 2: Convert to fraction form
    1,918,630.35/2,647,640.43 = 1,059,172.20/x
  3. Step 3: Cross multiply
    1,918,630.35x = 2,647,640.43 × 1,059,172.20
  4. Step 4: Simplify right side
    1,918,630.35x = 2,804,307,139,052.05
  5. Step 5: Solve for x
    x = 2,804,307,139,052.05/1,918,630.35
  6. Step 6: Final answer
    x = 1,461,619.29

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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.