Home / 420,918.80-580,846.14-229,895.27

Finding the Fourth Proportional to 420,918.80, 580,846.14 and 229,895.27

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Solution

The fourth proportional to 420,918.80, 580,846.14 and 229,895.27 is: 317,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,918.80 : 580,846.14 = 229,895.27 : x
  2. Step 2: Convert to fraction form
    420,918.80/580,846.14 = 229,895.27/x
  3. Step 3: Cross multiply
    420,918.80x = 580,846.14 × 229,895.27
  4. Step 4: Simplify right side
    420,918.80x = 133,533,780,183.76
  5. Step 5: Solve for x
    x = 133,533,780,183.76/420,918.80
  6. Step 6: Final answer
    x = 317,243.56

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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.