Home / 2,640,329.87-3,643,529.24-1,621,537.79

Finding the Fourth Proportional to 2,640,329.87, 3,643,529.24 and 1,621,537.79

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Solution

The fourth proportional to 2,640,329.87, 3,643,529.24 and 1,621,537.79 is: 2,237,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,329.87 : 3,643,529.24 = 1,621,537.79 : x
  2. Step 2: Convert to fraction form
    2,640,329.87/3,643,529.24 = 1,621,537.79/x
  3. Step 3: Cross multiply
    2,640,329.87x = 3,643,529.24 × 1,621,537.79
  4. Step 4: Simplify right side
    2,640,329.87x = 5,908,120,337,466.18
  5. Step 5: Solve for x
    x = 5,908,120,337,466.18/2,640,329.87
  6. Step 6: Final answer
    x = 2,237,644.78

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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.