Home / 1,378,329.15-1,901,815.49-805,258.61

Finding the Fourth Proportional to 1,378,329.15, 1,901,815.49 and 805,258.61

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Solution

The fourth proportional to 1,378,329.15, 1,901,815.49 and 805,258.61 is: 1,111,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,329.15 : 1,901,815.49 = 805,258.61 : x
  2. Step 2: Convert to fraction form
    1,378,329.15/1,901,815.49 = 805,258.61/x
  3. Step 3: Cross multiply
    1,378,329.15x = 1,901,815.49 × 805,258.61
  4. Step 4: Simplify right side
    1,378,329.15x = 1,531,453,297,589.75
  5. Step 5: Solve for x
    x = 1,531,453,297,589.75/1,378,329.15
  6. Step 6: Final answer
    x = 1,111,094.03

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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.