Home / 2,405,815.20-3,320,378.64-1,387,020.96

Finding the Fourth Proportional to 2,405,815.20, 3,320,378.64 and 1,387,020.96

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Solution

The fourth proportional to 2,405,815.20, 3,320,378.64 and 1,387,020.96 is: 1,914,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405,815.20 : 3,320,378.64 = 1,387,020.96 : x
  2. Step 2: Convert to fraction form
    2,405,815.20/3,320,378.64 = 1,387,020.96/x
  3. Step 3: Cross multiply
    2,405,815.20x = 3,320,378.64 × 1,387,020.96
  4. Step 4: Simplify right side
    2,405,815.20x = 4,605,434,768,816.30
  5. Step 5: Solve for x
    x = 4,605,434,768,816.30/2,405,815.20
  6. Step 6: Final answer
    x = 1,914,292.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.