Home / 765,291.24-1,147,898.89-285,481.66

Finding the Fourth Proportional to 765,291.24, 1,147,898.89 and 285,481.66

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Solution

The fourth proportional to 765,291.24, 1,147,898.89 and 285,481.66 is: 428,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,291.24 : 1,147,898.89 = 285,481.66 : x
  2. Step 2: Convert to fraction form
    765,291.24/1,147,898.89 = 285,481.66/x
  3. Step 3: Cross multiply
    765,291.24x = 1,147,898.89 × 285,481.66
  4. Step 4: Simplify right side
    765,291.24x = 327,704,082,785.40
  5. Step 5: Solve for x
    x = 327,704,082,785.40/765,291.24
  6. Step 6: Final answer
    x = 428,208.33

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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.