Home / 1,285,878.75-1,925,034.37-858,354.15

Finding the Fourth Proportional to 1,285,878.75, 1,925,034.37 and 858,354.15

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Solution

The fourth proportional to 1,285,878.75, 1,925,034.37 and 858,354.15 is: 1,285,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,878.75 : 1,925,034.37 = 858,354.15 : x
  2. Step 2: Convert to fraction form
    1,285,878.75/1,925,034.37 = 858,354.15/x
  3. Step 3: Cross multiply
    1,285,878.75x = 1,925,034.37 × 858,354.15
  4. Step 4: Simplify right side
    1,285,878.75x = 1,652,361,240,382.14
  5. Step 5: Solve for x
    x = 1,652,361,240,382.14/1,285,878.75
  6. Step 6: Final answer
    x = 1,285,005.48

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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.