Home / 1,405,619.82-2,108,429.69-340,661.88

Finding the Fourth Proportional to 1,405,619.82, 2,108,429.69 and 340,661.88

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Solution

The fourth proportional to 1,405,619.82, 2,108,429.69 and 340,661.88 is: 510,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,619.82 : 2,108,429.69 = 340,661.88 : x
  2. Step 2: Convert to fraction form
    1,405,619.82/2,108,429.69 = 340,661.88/x
  3. Step 3: Cross multiply
    1,405,619.82x = 2,108,429.69 × 340,661.88
  4. Step 4: Simplify right side
    1,405,619.82x = 718,261,620,339.91
  5. Step 5: Solve for x
    x = 718,261,620,339.91/1,405,619.82
  6. Step 6: Final answer
    x = 510,992.81

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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.