Home / 1,383,010.75-1,908,507.67-762,840.50

Finding the Fourth Proportional to 1,383,010.75, 1,908,507.67 and 762,840.50

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Solution

The fourth proportional to 1,383,010.75, 1,908,507.67 and 762,840.50 is: 1,052,693.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,010.75 : 1,908,507.67 = 762,840.50 : x
  2. Step 2: Convert to fraction form
    1,383,010.75/1,908,507.67 = 762,840.50/x
  3. Step 3: Cross multiply
    1,383,010.75x = 1,908,507.67 × 762,840.50
  4. Step 4: Simplify right side
    1,383,010.75x = 1,455,886,940,943.90
  5. Step 5: Solve for x
    x = 1,455,886,940,943.90/1,383,010.75
  6. Step 6: Final answer
    x = 1,052,693.87

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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.