Home / 755,301.72-1,042,329.66-411,147.54

Finding the Fourth Proportional to 755,301.72, 1,042,329.66 and 411,147.54

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Solution

The fourth proportional to 755,301.72, 1,042,329.66 and 411,147.54 is: 567,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,301.72 : 1,042,329.66 = 411,147.54 : x
  2. Step 2: Convert to fraction form
    755,301.72/1,042,329.66 = 411,147.54/x
  3. Step 3: Cross multiply
    755,301.72x = 1,042,329.66 × 411,147.54
  4. Step 4: Simplify right side
    755,301.72x = 428,551,268,310.65
  5. Step 5: Solve for x
    x = 428,551,268,310.65/755,301.72
  6. Step 6: Final answer
    x = 567,390.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.