Home / 1,179,914-1,628,281.32-643,371.28

Finding the Fourth Proportional to 1,179,914, 1,628,281.32 and 643,371.28

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Solution

The fourth proportional to 1,179,914, 1,628,281.32 and 643,371.28 is: 887,852.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,914 : 1,628,281.32 = 643,371.28 : x
  2. Step 2: Convert to fraction form
    1,179,914/1,628,281.32 = 643,371.28/x
  3. Step 3: Cross multiply
    1,179,914x = 1,628,281.32 × 643,371.28
  4. Step 4: Simplify right side
    1,179,914x = 1,047,589,437,048.49
  5. Step 5: Solve for x
    x = 1,047,589,437,048.49/1,179,914
  6. Step 6: Final answer
    x = 887,852.37

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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.