Home / 1,420,871.32-2,131,450.50-461,286.80

Finding the Fourth Proportional to 1,420,871.32, 2,131,450.50 and 461,286.80

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Solution

The fourth proportional to 1,420,871.32, 2,131,450.50 and 461,286.80 is: 691,976.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,871.32 : 2,131,450.50 = 461,286.80 : x
  2. Step 2: Convert to fraction form
    1,420,871.32/2,131,450.50 = 461,286.80/x
  3. Step 3: Cross multiply
    1,420,871.32x = 2,131,450.50 × 461,286.80
  4. Step 4: Simplify right side
    1,420,871.32x = 983,209,979,568.91
  5. Step 5: Solve for x
    x = 983,209,979,568.91/1,420,871.32
  6. Step 6: Final answer
    x = 691,976.79

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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.