Home / 720,971.62-1,081,518.78-188,491.79

Finding the Fourth Proportional to 720,971.62, 1,081,518.78 and 188,491.79

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Solution

The fourth proportional to 720,971.62, 1,081,518.78 and 188,491.79 is: 282,753.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,971.62 : 1,081,518.78 = 188,491.79 : x
  2. Step 2: Convert to fraction form
    720,971.62/1,081,518.78 = 188,491.79/x
  3. Step 3: Cross multiply
    720,971.62x = 1,081,518.78 × 188,491.79
  4. Step 4: Simplify right side
    720,971.62x = 203,857,414,171.46
  5. Step 5: Solve for x
    x = 203,857,414,171.46/720,971.62
  6. Step 6: Final answer
    x = 282,753.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.