Home / 1,179,975.54-1,628,363.24-643,431.54

Finding the Fourth Proportional to 1,179,975.54, 1,628,363.24 and 643,431.54

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Solution

The fourth proportional to 1,179,975.54, 1,628,363.24 and 643,431.54 is: 887,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,975.54 : 1,628,363.24 = 643,431.54 : x
  2. Step 2: Convert to fraction form
    1,179,975.54/1,628,363.24 = 643,431.54/x
  3. Step 3: Cross multiply
    1,179,975.54x = 1,628,363.24 × 643,431.54
  4. Step 4: Simplify right side
    1,179,975.54x = 1,047,740,267,192.59
  5. Step 5: Solve for x
    x = 1,047,740,267,192.59/1,179,975.54
  6. Step 6: Final answer
    x = 887,933.89

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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.