Home / 1,007,946.78-1,511,949.30-259,992.78

Finding the Fourth Proportional to 1,007,946.78, 1,511,949.30 and 259,992.78

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Solution

The fourth proportional to 1,007,946.78, 1,511,949.30 and 259,992.78 is: 389,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,946.78 : 1,511,949.30 = 259,992.78 : x
  2. Step 2: Convert to fraction form
    1,007,946.78/1,511,949.30 = 259,992.78/x
  3. Step 3: Cross multiply
    1,007,946.78x = 1,511,949.30 × 259,992.78
  4. Step 4: Simplify right side
    1,007,946.78x = 393,095,901,726.05
  5. Step 5: Solve for x
    x = 393,095,901,726.05/1,007,946.78
  6. Step 6: Final answer
    x = 389,996.68

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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.