Home / 1,127,546.73-1,691,568.86-328,890.78

Finding the Fourth Proportional to 1,127,546.73, 1,691,568.86 and 328,890.78

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Solution

The fourth proportional to 1,127,546.73, 1,691,568.86 and 328,890.78 is: 493,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,546.73 : 1,691,568.86 = 328,890.78 : x
  2. Step 2: Convert to fraction form
    1,127,546.73/1,691,568.86 = 328,890.78/x
  3. Step 3: Cross multiply
    1,127,546.73x = 1,691,568.86 × 328,890.78
  4. Step 4: Simplify right side
    1,127,546.73x = 556,341,400,144.66
  5. Step 5: Solve for x
    x = 556,341,400,144.66/1,127,546.73
  6. Step 6: Final answer
    x = 493,408.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.