Home / 1,137,042.54-1,705,540.39-378,939.06

Finding the Fourth Proportional to 1,137,042.54, 1,705,540.39 and 378,939.06

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Solution

The fourth proportional to 1,137,042.54, 1,705,540.39 and 378,939.06 is: 568,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,042.54 : 1,705,540.39 = 378,939.06 : x
  2. Step 2: Convert to fraction form
    1,137,042.54/1,705,540.39 = 378,939.06/x
  3. Step 3: Cross multiply
    1,137,042.54x = 1,705,540.39 × 378,939.06
  4. Step 4: Simplify right side
    1,137,042.54x = 646,295,872,178.63
  5. Step 5: Solve for x
    x = 646,295,872,178.63/1,137,042.54
  6. Step 6: Final answer
    x = 568,400.78

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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.