Home / 1,383,435.44-1,909,862.52-981,986.48

Finding the Fourth Proportional to 1,383,435.44, 1,909,862.52 and 981,986.48

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Solution

The fourth proportional to 1,383,435.44, 1,909,862.52 and 981,986.48 is: 1,355,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,435.44 : 1,909,862.52 = 981,986.48 : x
  2. Step 2: Convert to fraction form
    1,383,435.44/1,909,862.52 = 981,986.48/x
  3. Step 3: Cross multiply
    1,383,435.44x = 1,909,862.52 × 981,986.48
  4. Step 4: Simplify right side
    1,383,435.44x = 1,875,459,173,298.73
  5. Step 5: Solve for x
    x = 1,875,459,173,298.73/1,383,435.44
  6. Step 6: Final answer
    x = 1,355,653.56

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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.