Home / 2,980,115-4,112,558.70-1,621,997.72

Finding the Fourth Proportional to 2,980,115, 4,112,558.70 and 1,621,997.72

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Solution

The fourth proportional to 2,980,115, 4,112,558.70 and 1,621,997.72 is: 2,238,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980,115 : 4,112,558.70 = 1,621,997.72 : x
  2. Step 2: Convert to fraction form
    2,980,115/4,112,558.70 = 1,621,997.72/x
  3. Step 3: Cross multiply
    2,980,115x = 4,112,558.70 × 1,621,997.72
  4. Step 4: Simplify right side
    2,980,115x = 6,670,560,834,766.16
  5. Step 5: Solve for x
    x = 6,670,560,834,766.16/2,980,115
  6. Step 6: Final answer
    x = 2,238,356.85

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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.