Home / 1,258,857.72-1,737,201.78-685,902.60

Finding the Fourth Proportional to 1,258,857.72, 1,737,201.78 and 685,902.60

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Solution

The fourth proportional to 1,258,857.72, 1,737,201.78 and 685,902.60 is: 946,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,857.72 : 1,737,201.78 = 685,902.60 : x
  2. Step 2: Convert to fraction form
    1,258,857.72/1,737,201.78 = 685,902.60/x
  3. Step 3: Cross multiply
    1,258,857.72x = 1,737,201.78 × 685,902.60
  4. Step 4: Simplify right side
    1,258,857.72x = 1,191,551,217,626.63
  5. Step 5: Solve for x
    x = 1,191,551,217,626.63/1,258,857.72
  6. Step 6: Final answer
    x = 946,533.67

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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.