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Finding the Fourth Proportional to 451,005.27, 622,001.03 and 321,697.37

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Solution

The fourth proportional to 451,005.27, 622,001.03 and 321,697.37 is: 443,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,005.27 : 622,001.03 = 321,697.37 : x
  2. Step 2: Convert to fraction form
    451,005.27/622,001.03 = 321,697.37/x
  3. Step 3: Cross multiply
    451,005.27x = 622,001.03 × 321,697.37
  4. Step 4: Simplify right side
    451,005.27x = 200,096,095,434.81
  5. Step 5: Solve for x
    x = 200,096,095,434.81/451,005.27
  6. Step 6: Final answer
    x = 443,666.87

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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.