Home / 469,814.36-648,336.80-276,243.92

Finding the Fourth Proportional to 469,814.36, 648,336.80 and 276,243.92

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Solution

The fourth proportional to 469,814.36, 648,336.80 and 276,243.92 is: 381,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,814.36 : 648,336.80 = 276,243.92 : x
  2. Step 2: Convert to fraction form
    469,814.36/648,336.80 = 276,243.92/x
  3. Step 3: Cross multiply
    469,814.36x = 648,336.80 × 276,243.92
  4. Step 4: Simplify right side
    469,814.36x = 179,099,099,112.26
  5. Step 5: Solve for x
    x = 179,099,099,112.26/469,814.36
  6. Step 6: Final answer
    x = 381,212.48

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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.