Home / 1,395,639.92-1,926,029.54-783,900.59

Finding the Fourth Proportional to 1,395,639.92, 1,926,029.54 and 783,900.59

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Solution

The fourth proportional to 1,395,639.92, 1,926,029.54 and 783,900.59 is: 1,081,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,639.92 : 1,926,029.54 = 783,900.59 : x
  2. Step 2: Convert to fraction form
    1,395,639.92/1,926,029.54 = 783,900.59/x
  3. Step 3: Cross multiply
    1,395,639.92x = 1,926,029.54 × 783,900.59
  4. Step 4: Simplify right side
    1,395,639.92x = 1,509,815,685,093.03
  5. Step 5: Solve for x
    x = 1,509,815,685,093.03/1,395,639.92
  6. Step 6: Final answer
    x = 1,081,808.90

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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.