Home / 1,217,185.36-1,679,149.76-787,604.16

Finding the Fourth Proportional to 1,217,185.36, 1,679,149.76 and 787,604.16

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Solution

The fourth proportional to 1,217,185.36, 1,679,149.76 and 787,604.16 is: 1,086,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,185.36 : 1,679,149.76 = 787,604.16 : x
  2. Step 2: Convert to fraction form
    1,217,185.36/1,679,149.76 = 787,604.16/x
  3. Step 3: Cross multiply
    1,217,185.36x = 1,679,149.76 × 787,604.16
  4. Step 4: Simplify right side
    1,217,185.36x = 1,322,505,336,239.00
  5. Step 5: Solve for x
    x = 1,322,505,336,239.00/1,217,185.36
  6. Step 6: Final answer
    x = 1,086,527.48

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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.