Home / 1,511,253.09-2,084,981.57-857,500.44

Finding the Fourth Proportional to 1,511,253.09, 2,084,981.57 and 857,500.44

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Solution

The fourth proportional to 1,511,253.09, 2,084,981.57 and 857,500.44 is: 1,183,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,253.09 : 2,084,981.57 = 857,500.44 : x
  2. Step 2: Convert to fraction form
    1,511,253.09/2,084,981.57 = 857,500.44/x
  3. Step 3: Cross multiply
    1,511,253.09x = 2,084,981.57 × 857,500.44
  4. Step 4: Simplify right side
    1,511,253.09x = 1,787,872,609,379.39
  5. Step 5: Solve for x
    x = 1,787,872,609,379.39/1,511,253.09
  6. Step 6: Final answer
    x = 1,183,039.84

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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.