Home / 1,317,399.39-1,818,012.36-713,787.39

Finding the Fourth Proportional to 1,317,399.39, 1,818,012.36 and 713,787.39

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Solution

The fourth proportional to 1,317,399.39, 1,818,012.36 and 713,787.39 is: 985,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,399.39 : 1,818,012.36 = 713,787.39 : x
  2. Step 2: Convert to fraction form
    1,317,399.39/1,818,012.36 = 713,787.39/x
  3. Step 3: Cross multiply
    1,317,399.39x = 1,818,012.36 × 713,787.39
  4. Step 4: Simplify right side
    1,317,399.39x = 1,297,674,297,432.14
  5. Step 5: Solve for x
    x = 1,297,674,297,432.14/1,317,399.39
  6. Step 6: Final answer
    x = 985,027.25

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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.