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Finding the Fourth Proportional to 323,459.87, 484,451.69 and 285,619.37

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Solution

The fourth proportional to 323,459.87, 484,451.69 and 285,619.37 is: 427,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,459.87 : 484,451.69 = 285,619.37 : x
  2. Step 2: Convert to fraction form
    323,459.87/484,451.69 = 285,619.37/x
  3. Step 3: Cross multiply
    323,459.87x = 484,451.69 × 285,619.37
  4. Step 4: Simplify right side
    323,459.87x = 138,368,782,642.88
  5. Step 5: Solve for x
    x = 138,368,782,642.88/323,459.87
  6. Step 6: Final answer
    x = 427,777.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.