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Finding the Fourth Proportional to 636,558.82, 878,459.86 and 364,626.56

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Solution

The fourth proportional to 636,558.82, 878,459.86 and 364,626.56 is: 503,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,558.82 : 878,459.86 = 364,626.56 : x
  2. Step 2: Convert to fraction form
    636,558.82/878,459.86 = 364,626.56/x
  3. Step 3: Cross multiply
    636,558.82x = 878,459.86 × 364,626.56
  4. Step 4: Simplify right side
    636,558.82x = 320,309,796,849.88
  5. Step 5: Solve for x
    x = 320,309,796,849.88/636,558.82
  6. Step 6: Final answer
    x = 503,189.63

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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.