Home / 986,708.72-1,361,619.60-619,383.44

Finding the Fourth Proportional to 986,708.72, 1,361,619.60 and 619,383.44

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Solution

The fourth proportional to 986,708.72, 1,361,619.60 and 619,383.44 is: 854,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,708.72 : 1,361,619.60 = 619,383.44 : x
  2. Step 2: Convert to fraction form
    986,708.72/1,361,619.60 = 619,383.44/x
  3. Step 3: Cross multiply
    986,708.72x = 1,361,619.60 × 619,383.44
  4. Step 4: Simplify right side
    986,708.72x = 843,364,631,819.42
  5. Step 5: Solve for x
    x = 843,364,631,819.42/986,708.72
  6. Step 6: Final answer
    x = 854,725.02

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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.