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Finding the Fourth Proportional to 502,540.48, 693,667.48 and 321,739.37

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Solution

The fourth proportional to 502,540.48, 693,667.48 and 321,739.37 is: 444,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,540.48 : 693,667.48 = 321,739.37 : x
  2. Step 2: Convert to fraction form
    502,540.48/693,667.48 = 321,739.37/x
  3. Step 3: Cross multiply
    502,540.48x = 693,667.48 × 321,739.37
  4. Step 4: Simplify right side
    502,540.48x = 223,180,138,004.69
  5. Step 5: Solve for x
    x = 223,180,138,004.69/502,540.48
  6. Step 6: Final answer
    x = 444,103.80

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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.