Home / 420,828.22-580,733.96-229,842.38

Finding the Fourth Proportional to 420,828.22, 580,733.96 and 229,842.38

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Solution

The fourth proportional to 420,828.22, 580,733.96 and 229,842.38 is: 317,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,828.22 : 580,733.96 = 229,842.38 : x
  2. Step 2: Convert to fraction form
    420,828.22/580,733.96 = 229,842.38/x
  3. Step 3: Cross multiply
    420,828.22x = 580,733.96 × 229,842.38
  4. Step 4: Simplify right side
    420,828.22x = 133,477,275,513.23
  5. Step 5: Solve for x
    x = 133,477,275,513.23/420,828.22
  6. Step 6: Final answer
    x = 317,177.58

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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.