Home / 1,329,976.27-1,994,777.36-431,425.90

Finding the Fourth Proportional to 1,329,976.27, 1,994,777.36 and 431,425.90

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Solution

The fourth proportional to 1,329,976.27, 1,994,777.36 and 431,425.90 is: 647,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,976.27 : 1,994,777.36 = 431,425.90 : x
  2. Step 2: Convert to fraction form
    1,329,976.27/1,994,777.36 = 431,425.90/x
  3. Step 3: Cross multiply
    1,329,976.27x = 1,994,777.36 × 431,425.90
  4. Step 4: Simplify right side
    1,329,976.27x = 860,598,622,218.58
  5. Step 5: Solve for x
    x = 860,598,622,218.58/1,329,976.27
  6. Step 6: Final answer
    x = 647,078.18

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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.