Home / 705,120.64-1,058,101.20-255,876.56

Finding the Fourth Proportional to 705,120.64, 1,058,101.20 and 255,876.56

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Solution

The fourth proportional to 705,120.64, 1,058,101.20 and 255,876.56 is: 383,967.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,120.64 : 1,058,101.20 = 255,876.56 : x
  2. Step 2: Convert to fraction form
    705,120.64/1,058,101.20 = 255,876.56/x
  3. Step 3: Cross multiply
    705,120.64x = 1,058,101.20 × 255,876.56
  4. Step 4: Simplify right side
    705,120.64x = 270,743,295,187.87
  5. Step 5: Solve for x
    x = 270,743,295,187.87/705,120.64
  6. Step 6: Final answer
    x = 383,967.34

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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.