Home / 1,040,178.20-1,558,517.70-889,712.60

Finding the Fourth Proportional to 1,040,178.20, 1,558,517.70 and 889,712.60

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Solution

The fourth proportional to 1,040,178.20, 1,558,517.70 and 889,712.60 is: 1,333,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,178.20 : 1,558,517.70 = 889,712.60 : x
  2. Step 2: Convert to fraction form
    1,040,178.20/1,558,517.70 = 889,712.60/x
  3. Step 3: Cross multiply
    1,040,178.20x = 1,558,517.70 × 889,712.60
  4. Step 4: Simplify right side
    1,040,178.20x = 1,386,632,835,013.02
  5. Step 5: Solve for x
    x = 1,386,632,835,013.02/1,040,178.20
  6. Step 6: Final answer
    x = 1,333,072.39

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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.