Home / 685,343.73-1,028,532.68-468,684.78

Finding the Fourth Proportional to 685,343.73, 1,028,532.68 and 468,684.78

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Solution

The fourth proportional to 685,343.73, 1,028,532.68 and 468,684.78 is: 703,380.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,343.73 : 1,028,532.68 = 468,684.78 : x
  2. Step 2: Convert to fraction form
    685,343.73/1,028,532.68 = 468,684.78/x
  3. Step 3: Cross multiply
    685,343.73x = 1,028,532.68 × 468,684.78
  4. Step 4: Simplify right side
    685,343.73x = 482,057,614,834.09
  5. Step 5: Solve for x
    x = 482,057,614,834.09/685,343.73
  6. Step 6: Final answer
    x = 703,380.79

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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.