Home / 1,179,083.40-1,768,998.90-420,908.60

Finding the Fourth Proportional to 1,179,083.40, 1,768,998.90 and 420,908.60

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Solution

The fourth proportional to 1,179,083.40, 1,768,998.90 and 420,908.60 is: 631,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,083.40 : 1,768,998.90 = 420,908.60 : x
  2. Step 2: Convert to fraction form
    1,179,083.40/1,768,998.90 = 420,908.60/x
  3. Step 3: Cross multiply
    1,179,083.40x = 1,768,998.90 × 420,908.60
  4. Step 4: Simplify right side
    1,179,083.40x = 744,586,850,400.54
  5. Step 5: Solve for x
    x = 744,586,850,400.54/1,179,083.40
  6. Step 6: Final answer
    x = 631,496.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.