Home / 2,479,786.11-3,421,126.89-1,432,515.16

Finding the Fourth Proportional to 2,479,786.11, 3,421,126.89 and 1,432,515.16

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Solution

The fourth proportional to 2,479,786.11, 3,421,126.89 and 1,432,515.16 is: 1,976,305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479,786.11 : 3,421,126.89 = 1,432,515.16 : x
  2. Step 2: Convert to fraction form
    2,479,786.11/3,421,126.89 = 1,432,515.16/x
  3. Step 3: Cross multiply
    2,479,786.11x = 3,421,126.89 × 1,432,515.16
  4. Step 4: Simplify right side
    2,479,786.11x = 4,900,816,134,208.65
  5. Step 5: Solve for x
    x = 4,900,816,134,208.65/2,479,786.11
  6. Step 6: Final answer
    x = 1,976,305.99

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Why These Related Problems?

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