Home / 788,739.78-1,183,309.17-220,120.78

Finding the Fourth Proportional to 788,739.78, 1,183,309.17 and 220,120.78

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Solution

The fourth proportional to 788,739.78, 1,183,309.17 and 220,120.78 is: 330,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,739.78 : 1,183,309.17 = 220,120.78 : x
  2. Step 2: Convert to fraction form
    788,739.78/1,183,309.17 = 220,120.78/x
  3. Step 3: Cross multiply
    788,739.78x = 1,183,309.17 × 220,120.78
  4. Step 4: Simplify right side
    788,739.78x = 260,470,937,481.55
  5. Step 5: Solve for x
    x = 260,470,937,481.55/788,739.78
  6. Step 6: Final answer
    x = 330,236.85

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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.