Home / 1,188,371.25-1,639,955.03-679,072.41

Finding the Fourth Proportional to 1,188,371.25, 1,639,955.03 and 679,072.41

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Solution

The fourth proportional to 1,188,371.25, 1,639,955.03 and 679,072.41 is: 937,121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,371.25 : 1,639,955.03 = 679,072.41 : x
  2. Step 2: Convert to fraction form
    1,188,371.25/1,639,955.03 = 679,072.41/x
  3. Step 3: Cross multiply
    1,188,371.25x = 1,639,955.03 × 679,072.41
  4. Step 4: Simplify right side
    1,188,371.25x = 1,113,648,211,118.36
  5. Step 5: Solve for x
    x = 1,113,648,211,118.36/1,188,371.25
  6. Step 6: Final answer
    x = 937,121.47

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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.