Home / 1,328,145.40-1,992,218.10-330,873.40

Finding the Fourth Proportional to 1,328,145.40, 1,992,218.10 and 330,873.40

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Solution

The fourth proportional to 1,328,145.40, 1,992,218.10 and 330,873.40 is: 496,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,145.40 : 1,992,218.10 = 330,873.40 : x
  2. Step 2: Convert to fraction form
    1,328,145.40/1,992,218.10 = 330,873.40/x
  3. Step 3: Cross multiply
    1,328,145.40x = 1,992,218.10 × 330,873.40
  4. Step 4: Simplify right side
    1,328,145.40x = 659,171,976,288.54
  5. Step 5: Solve for x
    x = 659,171,976,288.54/1,328,145.40
  6. Step 6: Final answer
    x = 496,310.10

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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.