Home / 1,229,469.87-1,696,675.81-685,640.02

Finding the Fourth Proportional to 1,229,469.87, 1,696,675.81 and 685,640.02

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Solution

The fourth proportional to 1,229,469.87, 1,696,675.81 and 685,640.02 is: 946,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,469.87 : 1,696,675.81 = 685,640.02 : x
  2. Step 2: Convert to fraction form
    1,229,469.87/1,696,675.81 = 685,640.02/x
  3. Step 3: Cross multiply
    1,229,469.87x = 1,696,675.81 × 685,640.02
  4. Step 4: Simplify right side
    1,229,469.87x = 1,163,308,836,301.92
  5. Step 5: Solve for x
    x = 1,163,308,836,301.92/1,229,469.87
  6. Step 6: Final answer
    x = 946,187.35

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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.