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Finding the Fourth Proportional to 545,906.05, 753,342.72 and 304,198.81

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Solution

The fourth proportional to 545,906.05, 753,342.72 and 304,198.81 is: 419,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,906.05 : 753,342.72 = 304,198.81 : x
  2. Step 2: Convert to fraction form
    545,906.05/753,342.72 = 304,198.81/x
  3. Step 3: Cross multiply
    545,906.05x = 753,342.72 × 304,198.81
  4. Step 4: Simplify right side
    545,906.05x = 229,165,958,946.16
  5. Step 5: Solve for x
    x = 229,165,958,946.16/545,906.05
  6. Step 6: Final answer
    x = 419,790.11

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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.