Home / 1,317,406.90-1,818,022.72-713,794.90

Finding the Fourth Proportional to 1,317,406.90, 1,818,022.72 and 713,794.90

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Solution

The fourth proportional to 1,317,406.90, 1,818,022.72 and 713,794.90 is: 985,037.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,406.90 : 1,818,022.72 = 713,794.90 : x
  2. Step 2: Convert to fraction form
    1,317,406.90/1,818,022.72 = 713,794.90/x
  3. Step 3: Cross multiply
    1,317,406.90x = 1,818,022.72 × 713,794.90
  4. Step 4: Simplify right side
    1,317,406.90x = 1,297,695,345,620.13
  5. Step 5: Solve for x
    x = 1,297,695,345,620.13/1,317,406.90
  6. Step 6: Final answer
    x = 985,037.61

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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.