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Finding the Fourth Proportional to 520,575.09, 718,247.97 and 327,003.72

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Solution

The fourth proportional to 520,575.09, 718,247.97 and 327,003.72 is: 451,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,575.09 : 718,247.97 = 327,003.72 : x
  2. Step 2: Convert to fraction form
    520,575.09/718,247.97 = 327,003.72/x
  3. Step 3: Cross multiply
    520,575.09x = 718,247.97 × 327,003.72
  4. Step 4: Simplify right side
    520,575.09x = 234,869,758,072.45
  5. Step 5: Solve for x
    x = 234,869,758,072.45/520,575.09
  6. Step 6: Final answer
    x = 451,173.64

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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.