Home / 1,383,956.21-1,909,906.88-803,134.59

Finding the Fourth Proportional to 1,383,956.21, 1,909,906.88 and 803,134.59

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Solution

The fourth proportional to 1,383,956.21, 1,909,906.88 and 803,134.59 is: 1,108,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,956.21 : 1,909,906.88 = 803,134.59 : x
  2. Step 2: Convert to fraction form
    1,383,956.21/1,909,906.88 = 803,134.59/x
  3. Step 3: Cross multiply
    1,383,956.21x = 1,909,906.88 × 803,134.59
  4. Step 4: Simplify right side
    1,383,956.21x = 1,533,912,274,991.31
  5. Step 5: Solve for x
    x = 1,533,912,274,991.31/1,383,956.21
  6. Step 6: Final answer
    x = 1,108,353.19

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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.