Home / 1,288,237.73-1,777,986.72-744,688.61

Finding the Fourth Proportional to 1,288,237.73, 1,777,986.72 and 744,688.61

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Solution

The fourth proportional to 1,288,237.73, 1,777,986.72 and 744,688.61 is: 1,027,796.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,237.73 : 1,777,986.72 = 744,688.61 : x
  2. Step 2: Convert to fraction form
    1,288,237.73/1,777,986.72 = 744,688.61/x
  3. Step 3: Cross multiply
    1,288,237.73x = 1,777,986.72 × 744,688.61
  4. Step 4: Simplify right side
    1,288,237.73x = 1,324,046,450,225.33
  5. Step 5: Solve for x
    x = 1,324,046,450,225.33/1,288,237.73
  6. Step 6: Final answer
    x = 1,027,796.67

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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.