Home / 1,328,842.62-1,993,554.60-430,375.14

Finding the Fourth Proportional to 1,328,842.62, 1,993,554.60 and 430,375.14

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Solution

The fourth proportional to 1,328,842.62, 1,993,554.60 and 430,375.14 is: 645,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,842.62 : 1,993,554.60 = 430,375.14 : x
  2. Step 2: Convert to fraction form
    1,328,842.62/1,993,554.60 = 430,375.14/x
  3. Step 3: Cross multiply
    1,328,842.62x = 1,993,554.60 × 430,375.14
  4. Step 4: Simplify right side
    1,328,842.62x = 857,976,340,072.64
  5. Step 5: Solve for x
    x = 857,976,340,072.64/1,328,842.62
  6. Step 6: Final answer
    x = 645,656.85

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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.