Home / 705,872.78-1,058,341.09-256,540.26

Finding the Fourth Proportional to 705,872.78, 1,058,341.09 and 256,540.26

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Solution

The fourth proportional to 705,872.78, 1,058,341.09 and 256,540.26 is: 384,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,872.78 : 1,058,341.09 = 256,540.26 : x
  2. Step 2: Convert to fraction form
    705,872.78/1,058,341.09 = 256,540.26/x
  3. Step 3: Cross multiply
    705,872.78x = 1,058,341.09 × 256,540.26
  4. Step 4: Simplify right side
    705,872.78x = 271,507,102,205.73
  5. Step 5: Solve for x
    x = 271,507,102,205.73/705,872.78
  6. Step 6: Final answer
    x = 384,640.28

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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.