Home / 1,422,525.80-2,128,539.90-1,296,554.60

Finding the Fourth Proportional to 1,422,525.80, 2,128,539.90 and 1,296,554.60

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Solution

The fourth proportional to 1,422,525.80, 2,128,539.90 and 1,296,554.60 is: 1,940,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,525.80 : 2,128,539.90 = 1,296,554.60 : x
  2. Step 2: Convert to fraction form
    1,422,525.80/2,128,539.90 = 1,296,554.60/x
  3. Step 3: Cross multiply
    1,422,525.80x = 2,128,539.90 × 1,296,554.60
  4. Step 4: Simplify right side
    1,422,525.80x = 2,759,768,198,628.54
  5. Step 5: Solve for x
    x = 2,759,768,198,628.54/1,422,525.80
  6. Step 6: Final answer
    x = 1,940,047.91

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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.