Home / 1,211,131.73-1,816,740.32-641,743.44

Finding the Fourth Proportional to 1,211,131.73, 1,816,740.32 and 641,743.44

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Solution

The fourth proportional to 1,211,131.73, 1,816,740.32 and 641,743.44 is: 962,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,131.73 : 1,816,740.32 = 641,743.44 : x
  2. Step 2: Convert to fraction form
    1,211,131.73/1,816,740.32 = 641,743.44/x
  3. Step 3: Cross multiply
    1,211,131.73x = 1,816,740.32 × 641,743.44
  4. Step 4: Simplify right side
    1,211,131.73x = 1,165,881,179,334.78
  5. Step 5: Solve for x
    x = 1,165,881,179,334.78/1,211,131.73
  6. Step 6: Final answer
    x = 962,637.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.