Home / 842,563.78-1,162,745.75-479,982.26

Finding the Fourth Proportional to 842,563.78, 1,162,745.75 and 479,982.26

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Solution

The fourth proportional to 842,563.78, 1,162,745.75 and 479,982.26 is: 662,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,563.78 : 1,162,745.75 = 479,982.26 : x
  2. Step 2: Convert to fraction form
    842,563.78/1,162,745.75 = 479,982.26/x
  3. Step 3: Cross multiply
    842,563.78x = 1,162,745.75 × 479,982.26
  4. Step 4: Simplify right side
    842,563.78x = 558,097,336,997.22
  5. Step 5: Solve for x
    x = 558,097,336,997.22/842,563.78
  6. Step 6: Final answer
    x = 662,379.93

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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.