Home / 1,329,435.82-1,993,735.44-430,669.06

Finding the Fourth Proportional to 1,329,435.82, 1,993,735.44 and 430,669.06

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Solution

The fourth proportional to 1,329,435.82, 1,993,735.44 and 430,669.06 is: 645,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,435.82 : 1,993,735.44 = 430,669.06 : x
  2. Step 2: Convert to fraction form
    1,329,435.82/1,993,735.44 = 430,669.06/x
  3. Step 3: Cross multiply
    1,329,435.82x = 1,993,735.44 × 430,669.06
  4. Step 4: Simplify right side
    1,329,435.82x = 858,640,167,833.49
  5. Step 5: Solve for x
    x = 858,640,167,833.49/1,329,435.82
  6. Step 6: Final answer
    x = 645,868.09

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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.