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Finding the Fourth Proportional to 520,375.24, 718,108.50 and 294,015.88

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Solution

The fourth proportional to 520,375.24, 718,108.50 and 294,015.88 is: 405,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,375.24 : 718,108.50 = 294,015.88 : x
  2. Step 2: Convert to fraction form
    520,375.24/718,108.50 = 294,015.88/x
  3. Step 3: Cross multiply
    520,375.24x = 718,108.50 × 294,015.88
  4. Step 4: Simplify right side
    520,375.24x = 211,135,302,562.98
  5. Step 5: Solve for x
    x = 211,135,302,562.98/520,375.24
  6. Step 6: Final answer
    x = 405,736.64

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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.