Home / 1,285,923.41-1,925,101.31-858,398.85

Finding the Fourth Proportional to 1,285,923.41, 1,925,101.31 and 858,398.85

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Solution

The fourth proportional to 1,285,923.41, 1,925,101.31 and 858,398.85 is: 1,285,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,923.41 : 1,925,101.31 = 858,398.85 : x
  2. Step 2: Convert to fraction form
    1,285,923.41/1,925,101.31 = 858,398.85/x
  3. Step 3: Cross multiply
    1,285,923.41x = 1,925,101.31 × 858,398.85
  4. Step 4: Simplify right side
    1,285,923.41x = 1,652,504,746,345.50
  5. Step 5: Solve for x
    x = 1,652,504,746,345.50/1,285,923.41
  6. Step 6: Final answer
    x = 1,285,072.45

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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.