Home / 1,238,406.68-1,857,611.64-339,860.72

Finding the Fourth Proportional to 1,238,406.68, 1,857,611.64 and 339,860.72

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Solution

The fourth proportional to 1,238,406.68, 1,857,611.64 and 339,860.72 is: 509,791.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,406.68 : 1,857,611.64 = 339,860.72 : x
  2. Step 2: Convert to fraction form
    1,238,406.68/1,857,611.64 = 339,860.72/x
  3. Step 3: Cross multiply
    1,238,406.68x = 1,857,611.64 × 339,860.72
  4. Step 4: Simplify right side
    1,238,406.68x = 631,329,229,450.78
  5. Step 5: Solve for x
    x = 631,329,229,450.78/1,238,406.68
  6. Step 6: Final answer
    x = 509,791.52

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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.