Home / 1,241,758.72-1,870,935.79-1,121,954.92

Finding the Fourth Proportional to 1,241,758.72, 1,870,935.79 and 1,121,954.92

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Solution

The fourth proportional to 1,241,758.72, 1,870,935.79 and 1,121,954.92 is: 1,690,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,758.72 : 1,870,935.79 = 1,121,954.92 : x
  2. Step 2: Convert to fraction form
    1,241,758.72/1,870,935.79 = 1,121,954.92/x
  3. Step 3: Cross multiply
    1,241,758.72x = 1,870,935.79 × 1,121,954.92
  4. Step 4: Simplify right side
    1,241,758.72x = 2,099,105,614,594.59
  5. Step 5: Solve for x
    x = 2,099,105,614,594.59/1,241,758.72
  6. Step 6: Final answer
    x = 1,690,429.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.