Home / 1,887,968.40-2,605,383.48-1,028,529.36

Finding the Fourth Proportional to 1,887,968.40, 2,605,383.48 and 1,028,529.36

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Solution

The fourth proportional to 1,887,968.40, 2,605,383.48 and 1,028,529.36 is: 1,419,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,968.40 : 2,605,383.48 = 1,028,529.36 : x
  2. Step 2: Convert to fraction form
    1,887,968.40/2,605,383.48 = 1,028,529.36/x
  3. Step 3: Cross multiply
    1,887,968.40x = 2,605,383.48 × 1,028,529.36
  4. Step 4: Simplify right side
    1,887,968.40x = 2,679,713,403,238.97
  5. Step 5: Solve for x
    x = 2,679,713,403,238.97/1,887,968.40
  6. Step 6: Final answer
    x = 1,419,363.48

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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.