Home / 753,869.82-1,040,311.80-431,609.88

Finding the Fourth Proportional to 753,869.82, 1,040,311.80 and 431,609.88

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Solution

The fourth proportional to 753,869.82, 1,040,311.80 and 431,609.88 is: 595,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,869.82 : 1,040,311.80 = 431,609.88 : x
  2. Step 2: Convert to fraction form
    753,869.82/1,040,311.80 = 431,609.88/x
  3. Step 3: Cross multiply
    753,869.82x = 1,040,311.80 × 431,609.88
  4. Step 4: Simplify right side
    753,869.82x = 449,008,851,160.58
  5. Step 5: Solve for x
    x = 449,008,851,160.58/753,869.82
  6. Step 6: Final answer
    x = 595,605.29

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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.