Home / 1,225,760.97-1,691,604.72-1,021,469.88

Finding the Fourth Proportional to 1,225,760.97, 1,691,604.72 and 1,021,469.88

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Solution

The fourth proportional to 1,225,760.97, 1,691,604.72 and 1,021,469.88 is: 1,409,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,760.97 : 1,691,604.72 = 1,021,469.88 : x
  2. Step 2: Convert to fraction form
    1,225,760.97/1,691,604.72 = 1,021,469.88/x
  3. Step 3: Cross multiply
    1,225,760.97x = 1,691,604.72 × 1,021,469.88
  4. Step 4: Simplify right side
    1,225,760.97x = 1,727,923,270,345.83
  5. Step 5: Solve for x
    x = 1,727,923,270,345.83/1,225,760.97
  6. Step 6: Final answer
    x = 1,409,673.92

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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.