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Finding the Fourth Proportional to 800,302.77, 1,200,791.12 and 350,791.65

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Solution

The fourth proportional to 800,302.77, 1,200,791.12 and 350,791.65 is: 526,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,302.77 : 1,200,791.12 = 350,791.65 : x
  2. Step 2: Convert to fraction form
    800,302.77/1,200,791.12 = 350,791.65/x
  3. Step 3: Cross multiply
    800,302.77x = 1,200,791.12 × 350,791.65
  4. Step 4: Simplify right side
    800,302.77x = 421,227,496,536.19
  5. Step 5: Solve for x
    x = 421,227,496,536.19/800,302.77
  6. Step 6: Final answer
    x = 526,335.17

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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.