Home / 1,388,512.80-2,082,769.20-441,979.20

Finding the Fourth Proportional to 1,388,512.80, 2,082,769.20 and 441,979.20

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Solution

The fourth proportional to 1,388,512.80, 2,082,769.20 and 441,979.20 is: 662,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,512.80 : 2,082,769.20 = 441,979.20 : x
  2. Step 2: Convert to fraction form
    1,388,512.80/2,082,769.20 = 441,979.20/x
  3. Step 3: Cross multiply
    1,388,512.80x = 2,082,769.20 × 441,979.20
  4. Step 4: Simplify right side
    1,388,512.80x = 920,540,664,800.64
  5. Step 5: Solve for x
    x = 920,540,664,800.64/1,388,512.80
  6. Step 6: Final answer
    x = 662,968.80

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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.