Home / 1,320,494.45-1,979,429.31-787,216.37

Finding the Fourth Proportional to 1,320,494.45, 1,979,429.31 and 787,216.37

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Solution

The fourth proportional to 1,320,494.45, 1,979,429.31 and 787,216.37 is: 1,180,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,494.45 : 1,979,429.31 = 787,216.37 : x
  2. Step 2: Convert to fraction form
    1,320,494.45/1,979,429.31 = 787,216.37/x
  3. Step 3: Cross multiply
    1,320,494.45x = 1,979,429.31 × 787,216.37
  4. Step 4: Simplify right side
    1,320,494.45x = 1,558,239,146,192.66
  5. Step 5: Solve for x
    x = 1,558,239,146,192.66/1,320,494.45
  6. Step 6: Final answer
    x = 1,180,042.18

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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.