Home / 1,383,335.10-1,909,149.21-810,856.26

Finding the Fourth Proportional to 1,383,335.10, 1,909,149.21 and 810,856.26

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Solution

The fourth proportional to 1,383,335.10, 1,909,149.21 and 810,856.26 is: 1,119,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,335.10 : 1,909,149.21 = 810,856.26 : x
  2. Step 2: Convert to fraction form
    1,383,335.10/1,909,149.21 = 810,856.26/x
  3. Step 3: Cross multiply
    1,383,335.10x = 1,909,149.21 × 810,856.26
  4. Step 4: Simplify right side
    1,383,335.10x = 1,548,045,588,202.55
  5. Step 5: Solve for x
    x = 1,548,045,588,202.55/1,383,335.10
  6. Step 6: Final answer
    x = 1,119,067.67

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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.