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Finding the Fourth Proportional to 988,946.82, 1,481,500.82 and 728,812

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Solution

The fourth proportional to 988,946.82, 1,481,500.82 and 728,812 is: 1,091,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,946.82 : 1,481,500.82 = 728,812 : x
  2. Step 2: Convert to fraction form
    988,946.82/1,481,500.82 = 728,812/x
  3. Step 3: Cross multiply
    988,946.82x = 1,481,500.82 × 728,812
  4. Step 4: Simplify right side
    988,946.82x = 1,079,735,575,625.84
  5. Step 5: Solve for x
    x = 1,079,735,575,625.84/988,946.82
  6. Step 6: Final answer
    x = 1,091,803.48

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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.