Home / 1,188,260.75-1,639,800.64-644,396.37

Finding the Fourth Proportional to 1,188,260.75, 1,639,800.64 and 644,396.37

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Solution

The fourth proportional to 1,188,260.75, 1,639,800.64 and 644,396.37 is: 889,267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,260.75 : 1,639,800.64 = 644,396.37 : x
  2. Step 2: Convert to fraction form
    1,188,260.75/1,639,800.64 = 644,396.37/x
  3. Step 3: Cross multiply
    1,188,260.75x = 1,639,800.64 × 644,396.37
  4. Step 4: Simplify right side
    1,188,260.75x = 1,056,681,576,717.70
  5. Step 5: Solve for x
    x = 1,056,681,576,717.70/1,188,260.75
  6. Step 6: Final answer
    x = 889,267.42

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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.