Home / 705,120.84-1,058,101.56-255,876.78

Finding the Fourth Proportional to 705,120.84, 1,058,101.56 and 255,876.78

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Solution

The fourth proportional to 705,120.84, 1,058,101.56 and 255,876.78 is: 383,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,120.84 : 1,058,101.56 = 255,876.78 : x
  2. Step 2: Convert to fraction form
    705,120.84/1,058,101.56 = 255,876.78/x
  3. Step 3: Cross multiply
    705,120.84x = 1,058,101.56 × 255,876.78
  4. Step 4: Simplify right side
    705,120.84x = 270,743,620,085.78
  5. Step 5: Solve for x
    x = 270,743,620,085.78/705,120.84
  6. Step 6: Final answer
    x = 383,967.69

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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.