Home / 812,189.84-1,217,680.94-492,263.17

Finding the Fourth Proportional to 812,189.84, 1,217,680.94 and 492,263.17

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Solution

The fourth proportional to 812,189.84, 1,217,680.94 and 492,263.17 is: 738,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,189.84 : 1,217,680.94 = 492,263.17 : x
  2. Step 2: Convert to fraction form
    812,189.84/1,217,680.94 = 492,263.17/x
  3. Step 3: Cross multiply
    812,189.84x = 1,217,680.94 × 492,263.17
  4. Step 4: Simplify right side
    812,189.84x = 599,419,481,147.69
  5. Step 5: Solve for x
    x = 599,419,481,147.69/812,189.84
  6. Step 6: Final answer
    x = 738,028.79

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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.