Home / 1,138,695.72-1,571,527.94-685,977

Finding the Fourth Proportional to 1,138,695.72, 1,571,527.94 and 685,977

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Solution

The fourth proportional to 1,138,695.72, 1,571,527.94 and 685,977 is: 946,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,695.72 : 1,571,527.94 = 685,977 : x
  2. Step 2: Convert to fraction form
    1,138,695.72/1,571,527.94 = 685,977/x
  3. Step 3: Cross multiply
    1,138,695.72x = 1,571,527.94 × 685,977
  4. Step 4: Simplify right side
    1,138,695.72x = 1,078,032,021,697.38
  5. Step 5: Solve for x
    x = 1,078,032,021,697.38/1,138,695.72
  6. Step 6: Final answer
    x = 946,725.28

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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.