Home / 1,317,238.42-1,817,790.87-713,626.42

Finding the Fourth Proportional to 1,317,238.42, 1,817,790.87 and 713,626.42

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Solution

The fourth proportional to 1,317,238.42, 1,817,790.87 and 713,626.42 is: 984,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,238.42 : 1,817,790.87 = 713,626.42 : x
  2. Step 2: Convert to fraction form
    1,317,238.42/1,817,790.87 = 713,626.42/x
  3. Step 3: Cross multiply
    1,317,238.42x = 1,817,790.87 × 713,626.42
  4. Step 4: Simplify right side
    1,317,238.42x = 1,297,223,590,866.79
  5. Step 5: Solve for x
    x = 1,297,223,590,866.79/1,317,238.42
  6. Step 6: Final answer
    x = 984,805.46

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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.