Home / 1,189,895.21-1,785,551.97-431,795.82

Finding the Fourth Proportional to 1,189,895.21, 1,785,551.97 and 431,795.82

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Solution

The fourth proportional to 1,189,895.21, 1,785,551.97 and 431,795.82 is: 647,951.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,895.21 : 1,785,551.97 = 431,795.82 : x
  2. Step 2: Convert to fraction form
    1,189,895.21/1,785,551.97 = 431,795.82/x
  3. Step 3: Cross multiply
    1,189,895.21x = 1,785,551.97 × 431,795.82
  4. Step 4: Simplify right side
    1,189,895.21x = 770,993,877,038.77
  5. Step 5: Solve for x
    x = 770,993,877,038.77/1,189,895.21
  6. Step 6: Final answer
    x = 647,951.07

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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.