Home / 1,078,481.57-1,488,843.88-670,714.77

Finding the Fourth Proportional to 1,078,481.57, 1,488,843.88 and 670,714.77

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Solution

The fourth proportional to 1,078,481.57, 1,488,843.88 and 670,714.77 is: 925,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,481.57 : 1,488,843.88 = 670,714.77 : x
  2. Step 2: Convert to fraction form
    1,078,481.57/1,488,843.88 = 670,714.77/x
  3. Step 3: Cross multiply
    1,078,481.57x = 1,488,843.88 × 670,714.77
  4. Step 4: Simplify right side
    1,078,481.57x = 998,589,578,863.32
  5. Step 5: Solve for x
    x = 998,589,578,863.32/1,078,481.57
  6. Step 6: Final answer
    x = 925,921.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.