Home / 1,256,939.78-1,885,704.87-415,491.50

Finding the Fourth Proportional to 1,256,939.78, 1,885,704.87 and 415,491.50

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Solution

The fourth proportional to 1,256,939.78, 1,885,704.87 and 415,491.50 is: 623,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,939.78 : 1,885,704.87 = 415,491.50 : x
  2. Step 2: Convert to fraction form
    1,256,939.78/1,885,704.87 = 415,491.50/x
  3. Step 3: Cross multiply
    1,256,939.78x = 1,885,704.87 × 415,491.50
  4. Step 4: Simplify right side
    1,256,939.78x = 783,494,351,265.96
  5. Step 5: Solve for x
    x = 783,494,351,265.96/1,256,939.78
  6. Step 6: Final answer
    x = 623,334.83

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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.