Home / 420,973.24-580,940.94-229,997.56

Finding the Fourth Proportional to 420,973.24, 580,940.94 and 229,997.56

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Solution

The fourth proportional to 420,973.24, 580,940.94 and 229,997.56 is: 317,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,973.24 : 580,940.94 = 229,997.56 : x
  2. Step 2: Convert to fraction form
    420,973.24/580,940.94 = 229,997.56/x
  3. Step 3: Cross multiply
    420,973.24x = 580,940.94 × 229,997.56
  4. Step 4: Simplify right side
    420,973.24x = 133,614,998,704.11
  5. Step 5: Solve for x
    x = 133,614,998,704.11/420,973.24
  6. Step 6: Final answer
    x = 317,395.47

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1.5x scale

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.