Home / 1,405,258.38-1,939,257.72-760,676.58

Finding the Fourth Proportional to 1,405,258.38, 1,939,257.72 and 760,676.58

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Solution

The fourth proportional to 1,405,258.38, 1,939,257.72 and 760,676.58 is: 1,049,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,258.38 : 1,939,257.72 = 760,676.58 : x
  2. Step 2: Convert to fraction form
    1,405,258.38/1,939,257.72 = 760,676.58/x
  3. Step 3: Cross multiply
    1,405,258.38x = 1,939,257.72 × 760,676.58
  4. Step 4: Simplify right side
    1,405,258.38x = 1,475,147,930,188.20
  5. Step 5: Solve for x
    x = 1,475,147,930,188.20/1,405,258.38
  6. Step 6: Final answer
    x = 1,049,734.31

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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.