Home / 1,238,240.87-1,857,361.71-817,418.33

Finding the Fourth Proportional to 1,238,240.87, 1,857,361.71 and 817,418.33

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Solution

The fourth proportional to 1,238,240.87, 1,857,361.71 and 817,418.33 is: 1,226,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,240.87 : 1,857,361.71 = 817,418.33 : x
  2. Step 2: Convert to fraction form
    1,238,240.87/1,857,361.71 = 817,418.33/x
  3. Step 3: Cross multiply
    1,238,240.87x = 1,857,361.71 × 817,418.33
  4. Step 4: Simplify right side
    1,238,240.87x = 1,518,241,507,194.14
  5. Step 5: Solve for x
    x = 1,518,241,507,194.14/1,238,240.87
  6. Step 6: Final answer
    x = 1,226,127.76

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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.