Home / 1,286,660.21-1,929,994.83-327,115.92

Finding the Fourth Proportional to 1,286,660.21, 1,929,994.83 and 327,115.92

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Solution

The fourth proportional to 1,286,660.21, 1,929,994.83 and 327,115.92 is: 490,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,660.21 : 1,929,994.83 = 327,115.92 : x
  2. Step 2: Convert to fraction form
    1,286,660.21/1,929,994.83 = 327,115.92/x
  3. Step 3: Cross multiply
    1,286,660.21x = 1,929,994.83 × 327,115.92
  4. Step 4: Simplify right side
    1,286,660.21x = 631,332,038,934.12
  5. Step 5: Solve for x
    x = 631,332,038,934.12/1,286,660.21
  6. Step 6: Final answer
    x = 490,675.03

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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.