Home / 1,383,027.78-1,908,531.21-762,857.55

Finding the Fourth Proportional to 1,383,027.78, 1,908,531.21 and 762,857.55

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Solution

The fourth proportional to 1,383,027.78, 1,908,531.21 and 762,857.55 is: 1,052,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,027.78 : 1,908,531.21 = 762,857.55 : x
  2. Step 2: Convert to fraction form
    1,383,027.78/1,908,531.21 = 762,857.55/x
  3. Step 3: Cross multiply
    1,383,027.78x = 1,908,531.21 × 762,857.55
  4. Step 4: Simplify right side
    1,383,027.78x = 1,455,937,442,959.14
  5. Step 5: Solve for x
    x = 1,455,937,442,959.14/1,383,027.78
  6. Step 6: Final answer
    x = 1,052,717.42

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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.