Home / 1,217,662.92-1,678,999.72-910,755.75

Finding the Fourth Proportional to 1,217,662.92, 1,678,999.72 and 910,755.75

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Solution

The fourth proportional to 1,217,662.92, 1,678,999.72 and 910,755.75 is: 1,255,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,662.92 : 1,678,999.72 = 910,755.75 : x
  2. Step 2: Convert to fraction form
    1,217,662.92/1,678,999.72 = 910,755.75/x
  3. Step 3: Cross multiply
    1,217,662.92x = 1,678,999.72 × 910,755.75
  4. Step 4: Simplify right side
    1,217,662.92x = 1,529,158,647,507.45
  5. Step 5: Solve for x
    x = 1,529,158,647,507.45/1,217,662.92
  6. Step 6: Final answer
    x = 1,255,814.41

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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.