Home / 860,379.96-1,289,407.37-327,610.36

Finding the Fourth Proportional to 860,379.96, 1,289,407.37 and 327,610.36

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Solution

The fourth proportional to 860,379.96, 1,289,407.37 and 327,610.36 is: 490,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,379.96 : 1,289,407.37 = 327,610.36 : x
  2. Step 2: Convert to fraction form
    860,379.96/1,289,407.37 = 327,610.36/x
  3. Step 3: Cross multiply
    860,379.96x = 1,289,407.37 × 327,610.36
  4. Step 4: Simplify right side
    860,379.96x = 422,423,212,672.35
  5. Step 5: Solve for x
    x = 422,423,212,672.35/860,379.96
  6. Step 6: Final answer
    x = 490,972.86

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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.