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Finding the Fourth Proportional to 1,326,986.03, 1,990,480.41 and 329,714.03

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Solution

The fourth proportional to 1,326,986.03, 1,990,480.41 and 329,714.03 is: 494,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,986.03 : 1,990,480.41 = 329,714.03 : x
  2. Step 2: Convert to fraction form
    1,326,986.03/1,990,480.41 = 329,714.03/x
  3. Step 3: Cross multiply
    1,326,986.03x = 1,990,480.41 × 329,714.03
  4. Step 4: Simplify right side
    1,326,986.03x = 656,289,317,617.15
  5. Step 5: Solve for x
    x = 656,289,317,617.15/1,326,986.03
  6. Step 6: Final answer
    x = 494,571.38

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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.