Home / 1,262,972.88-1,893,182.78-543,783.68

Finding the Fourth Proportional to 1,262,972.88, 1,893,182.78 and 543,783.68

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Solution

The fourth proportional to 1,262,972.88, 1,893,182.78 and 543,783.68 is: 815,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,972.88 : 1,893,182.78 = 543,783.68 : x
  2. Step 2: Convert to fraction form
    1,262,972.88/1,893,182.78 = 543,783.68/x
  3. Step 3: Cross multiply
    1,262,972.88x = 1,893,182.78 × 543,783.68
  4. Step 4: Simplify right side
    1,262,972.88x = 1,029,481,899,021.03
  5. Step 5: Solve for x
    x = 1,029,481,899,021.03/1,262,972.88
  6. Step 6: Final answer
    x = 815,125.89

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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.