Home / 3,874,815.40-5,809,598.70-1,979,998.60

Finding the Fourth Proportional to 3,874,815.40, 5,809,598.70 and 1,979,998.60

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Solution

The fourth proportional to 3,874,815.40, 5,809,598.70 and 1,979,998.60 is: 2,968,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874,815.40 : 5,809,598.70 = 1,979,998.60 : x
  2. Step 2: Convert to fraction form
    3,874,815.40/5,809,598.70 = 1,979,998.60/x
  3. Step 3: Cross multiply
    3,874,815.40x = 5,809,598.70 × 1,979,998.60
  4. Step 4: Simplify right side
    3,874,815.40x = 11,502,997,292,561.82
  5. Step 5: Solve for x
    x = 11,502,997,292,561.82/3,874,815.40
  6. Step 6: Final answer
    x = 2,968,656.85

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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.