Home / 1,586,376.09-2,189,225.43-861,223.97

Finding the Fourth Proportional to 1,586,376.09, 2,189,225.43 and 861,223.97

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Solution

The fourth proportional to 1,586,376.09, 2,189,225.43 and 861,223.97 is: 1,188,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,376.09 : 2,189,225.43 = 861,223.97 : x
  2. Step 2: Convert to fraction form
    1,586,376.09/2,189,225.43 = 861,223.97/x
  3. Step 3: Cross multiply
    1,586,376.09x = 2,189,225.43 × 861,223.97
  4. Step 4: Simplify right side
    1,586,376.09x = 1,885,413,416,049.56
  5. Step 5: Solve for x
    x = 1,885,413,416,049.56/1,586,376.09
  6. Step 6: Final answer
    x = 1,188,503.42

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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.