Home / 1,395,910.38-1,925,865.78-912,758.34

Finding the Fourth Proportional to 1,395,910.38, 1,925,865.78 and 912,758.34

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Solution

The fourth proportional to 1,395,910.38, 1,925,865.78 and 912,758.34 is: 1,259,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,910.38 : 1,925,865.78 = 912,758.34 : x
  2. Step 2: Convert to fraction form
    1,395,910.38/1,925,865.78 = 912,758.34/x
  3. Step 3: Cross multiply
    1,395,910.38x = 1,925,865.78 × 912,758.34
  4. Step 4: Simplify right side
    1,395,910.38x = 1,757,850,052,415.61
  5. Step 5: Solve for x
    x = 1,757,850,052,415.61/1,395,910.38
  6. Step 6: Final answer
    x = 1,259,285.75

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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.