Home / 420,727.62-580,604.04-229,741.20

Finding the Fourth Proportional to 420,727.62, 580,604.04 and 229,741.20

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Solution

The fourth proportional to 420,727.62, 580,604.04 and 229,741.20 is: 317,042.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,727.62 : 580,604.04 = 229,741.20 : x
  2. Step 2: Convert to fraction form
    420,727.62/580,604.04 = 229,741.20/x
  3. Step 3: Cross multiply
    420,727.62x = 580,604.04 × 229,741.20
  4. Step 4: Simplify right side
    420,727.62x = 133,388,668,874.45
  5. Step 5: Solve for x
    x = 133,388,668,874.45/420,727.62
  6. Step 6: Final answer
    x = 317,042.81

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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.