Home / 1,422,327.52-1,962,932.88-810,667.36

Finding the Fourth Proportional to 1,422,327.52, 1,962,932.88 and 810,667.36

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Solution

The fourth proportional to 1,422,327.52, 1,962,932.88 and 810,667.36 is: 1,118,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,327.52 : 1,962,932.88 = 810,667.36 : x
  2. Step 2: Convert to fraction form
    1,422,327.52/1,962,932.88 = 810,667.36/x
  3. Step 3: Cross multiply
    1,422,327.52x = 1,962,932.88 × 810,667.36
  4. Step 4: Simplify right side
    1,422,327.52x = 1,591,285,615,686.80
  5. Step 5: Solve for x
    x = 1,591,285,615,686.80/1,422,327.52
  6. Step 6: Final answer
    x = 1,118,789.87

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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.