Home / 1,726,786.20-2,590,179.30-1,129,589.40

Finding the Fourth Proportional to 1,726,786.20, 2,590,179.30 and 1,129,589.40

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Solution

The fourth proportional to 1,726,786.20, 2,590,179.30 and 1,129,589.40 is: 1,694,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726,786.20 : 2,590,179.30 = 1,129,589.40 : x
  2. Step 2: Convert to fraction form
    1,726,786.20/2,590,179.30 = 1,129,589.40/x
  3. Step 3: Cross multiply
    1,726,786.20x = 2,590,179.30 × 1,129,589.40
  4. Step 4: Simplify right side
    1,726,786.20x = 2,925,839,081,379.42
  5. Step 5: Solve for x
    x = 2,925,839,081,379.42/1,726,786.20
  6. Step 6: Final answer
    x = 1,694,384.10

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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.