Home / 721,764.45-995,967.46-431,318.37

Finding the Fourth Proportional to 721,764.45, 995,967.46 and 431,318.37

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Solution

The fourth proportional to 721,764.45, 995,967.46 and 431,318.37 is: 595,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,764.45 : 995,967.46 = 431,318.37 : x
  2. Step 2: Convert to fraction form
    721,764.45/995,967.46 = 431,318.37/x
  3. Step 3: Cross multiply
    721,764.45x = 995,967.46 × 431,318.37
  4. Step 4: Simplify right side
    721,764.45x = 429,579,065,694.27
  5. Step 5: Solve for x
    x = 429,579,065,694.27/721,764.45
  6. Step 6: Final answer
    x = 595,179.03

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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.