Home / 681,022.43-939,817.26-375,109.65

Finding the Fourth Proportional to 681,022.43, 939,817.26 and 375,109.65

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Solution

The fourth proportional to 681,022.43, 939,817.26 and 375,109.65 is: 517,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,022.43 : 939,817.26 = 375,109.65 : x
  2. Step 2: Convert to fraction form
    681,022.43/939,817.26 = 375,109.65/x
  3. Step 3: Cross multiply
    681,022.43x = 939,817.26 × 375,109.65
  4. Step 4: Simplify right side
    681,022.43x = 352,534,526,986.87
  5. Step 5: Solve for x
    x = 352,534,526,986.87/681,022.43
  6. Step 6: Final answer
    x = 517,654.80

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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.