Home / 2,979,266-4,111,352.52-1,621,115.60

Finding the Fourth Proportional to 2,979,266, 4,111,352.52 and 1,621,115.60

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Solution

The fourth proportional to 2,979,266, 4,111,352.52 and 1,621,115.60 is: 2,237,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,266 : 4,111,352.52 = 1,621,115.60 : x
  2. Step 2: Convert to fraction form
    2,979,266/4,111,352.52 = 1,621,115.60/x
  3. Step 3: Cross multiply
    2,979,266x = 4,111,352.52 × 1,621,115.60
  4. Step 4: Simplify right side
    2,979,266x = 6,664,977,707,271.31
  5. Step 5: Solve for x
    x = 6,664,977,707,271.31/2,979,266
  6. Step 6: Final answer
    x = 2,237,120.72

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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.