Home / 871,180-1,306,819.26-310,214.56

Finding the Fourth Proportional to 871,180, 1,306,819.26 and 310,214.56

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Solution

The fourth proportional to 871,180, 1,306,819.26 and 310,214.56 is: 465,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,180 : 1,306,819.26 = 310,214.56 : x
  2. Step 2: Convert to fraction form
    871,180/1,306,819.26 = 310,214.56/x
  3. Step 3: Cross multiply
    871,180x = 1,306,819.26 × 310,214.56
  4. Step 4: Simplify right side
    871,180x = 405,394,361,740.43
  5. Step 5: Solve for x
    x = 405,394,361,740.43/871,180
  6. Step 6: Final answer
    x = 465,339.38

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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.