Home / 1,258,213.66-1,736,336.82-685,256.11

Finding the Fourth Proportional to 1,258,213.66, 1,736,336.82 and 685,256.11

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Solution

The fourth proportional to 1,258,213.66, 1,736,336.82 and 685,256.11 is: 945,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,213.66 : 1,736,336.82 = 685,256.11 : x
  2. Step 2: Convert to fraction form
    1,258,213.66/1,736,336.82 = 685,256.11/x
  3. Step 3: Cross multiply
    1,258,213.66x = 1,736,336.82 × 685,256.11
  4. Step 4: Simplify right side
    1,258,213.66x = 1,189,835,414,922.97
  5. Step 5: Solve for x
    x = 1,189,835,414,922.97/1,258,213.66
  6. Step 6: Final answer
    x = 945,654.50

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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.