Home / 1,317,455.36-1,818,089.70-713,843.36

Finding the Fourth Proportional to 1,317,455.36, 1,818,089.70 and 713,843.36

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Solution

The fourth proportional to 1,317,455.36, 1,818,089.70 and 713,843.36 is: 985,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,455.36 : 1,818,089.70 = 713,843.36 : x
  2. Step 2: Convert to fraction form
    1,317,455.36/1,818,089.70 = 713,843.36/x
  3. Step 3: Cross multiply
    1,317,455.36x = 1,818,089.70 × 713,843.36
  4. Step 4: Simplify right side
    1,317,455.36x = 1,297,831,260,229.39
  5. Step 5: Solve for x
    x = 1,297,831,260,229.39/1,317,455.36
  6. Step 6: Final answer
    x = 985,104.54

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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.