Home / 1,228,040.20-1,694,579.70-684,120.52

Finding the Fourth Proportional to 1,228,040.20, 1,694,579.70 and 684,120.52

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Solution

The fourth proportional to 1,228,040.20, 1,694,579.70 and 684,120.52 is: 944,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,040.20 : 1,694,579.70 = 684,120.52 : x
  2. Step 2: Convert to fraction form
    1,228,040.20/1,694,579.70 = 684,120.52/x
  3. Step 3: Cross multiply
    1,228,040.20x = 1,694,579.70 × 684,120.52
  4. Step 4: Simplify right side
    1,228,040.20x = 1,159,296,745,545.44
  5. Step 5: Solve for x
    x = 1,159,296,745,545.44/1,228,040.20
  6. Step 6: Final answer
    x = 944,021.82

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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.