Home / 988,138.38-1,481,078.46-448,805.94

Finding the Fourth Proportional to 988,138.38, 1,481,078.46 and 448,805.94

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Solution

The fourth proportional to 988,138.38, 1,481,078.46 and 448,805.94 is: 672,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,138.38 : 1,481,078.46 = 448,805.94 : x
  2. Step 2: Convert to fraction form
    988,138.38/1,481,078.46 = 448,805.94/x
  3. Step 3: Cross multiply
    988,138.38x = 1,481,078.46 × 448,805.94
  4. Step 4: Simplify right side
    988,138.38x = 664,716,810,454.05
  5. Step 5: Solve for x
    x = 664,716,810,454.05/988,138.38
  6. Step 6: Final answer
    x = 672,696.08

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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.