Home / 1,787,998.40-2,680,960.80-666,180.80

Finding the Fourth Proportional to 1,787,998.40, 2,680,960.80 and 666,180.80

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Solution

The fourth proportional to 1,787,998.40, 2,680,960.80 and 666,180.80 is: 998,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,998.40 : 2,680,960.80 = 666,180.80 : x
  2. Step 2: Convert to fraction form
    1,787,998.40/2,680,960.80 = 666,180.80/x
  3. Step 3: Cross multiply
    1,787,998.40x = 2,680,960.80 × 666,180.80
  4. Step 4: Simplify right side
    1,787,998.40x = 1,786,004,610,512.64
  5. Step 5: Solve for x
    x = 1,786,004,610,512.64/1,787,998.40
  6. Step 6: Final answer
    x = 998,884.90

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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.