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Finding the Fourth Proportional to 520,709.30, 718,373.38 and 327,003.08

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Solution

The fourth proportional to 520,709.30, 718,373.38 and 327,003.08 is: 451,135.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,709.30 : 718,373.38 = 327,003.08 : x
  2. Step 2: Convert to fraction form
    520,709.30/718,373.38 = 327,003.08/x
  3. Step 3: Cross multiply
    520,709.30x = 718,373.38 × 327,003.08
  4. Step 4: Simplify right side
    520,709.30x = 234,910,307,850.01
  5. Step 5: Solve for x
    x = 234,910,307,850.01/520,709.30
  6. Step 6: Final answer
    x = 451,135.23

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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.