Home / 859,106.56-1,185,696.32-618,186.64

Finding the Fourth Proportional to 859,106.56, 1,185,696.32 and 618,186.64

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Solution

The fourth proportional to 859,106.56, 1,185,696.32 and 618,186.64 is: 853,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,106.56 : 1,185,696.32 = 618,186.64 : x
  2. Step 2: Convert to fraction form
    859,106.56/1,185,696.32 = 618,186.64/x
  3. Step 3: Cross multiply
    859,106.56x = 1,185,696.32 × 618,186.64
  4. Step 4: Simplify right side
    859,106.56x = 732,981,624,121.17
  5. Step 5: Solve for x
    x = 732,981,624,121.17/859,106.56
  6. Step 6: Final answer
    x = 853,190.58

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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.