Home / 1,380,909-2,071,389.44-383,662.92

Finding the Fourth Proportional to 1,380,909, 2,071,389.44 and 383,662.92

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Solution

The fourth proportional to 1,380,909, 2,071,389.44 and 383,662.92 is: 575,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,909 : 2,071,389.44 = 383,662.92 : x
  2. Step 2: Convert to fraction form
    1,380,909/2,071,389.44 = 383,662.92/x
  3. Step 3: Cross multiply
    1,380,909x = 2,071,389.44 × 383,662.92
  4. Step 4: Simplify right side
    1,380,909x = 794,715,321,007.57
  5. Step 5: Solve for x
    x = 794,715,321,007.57/1,380,909
  6. Step 6: Final answer
    x = 575,501.59

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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.