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Finding the Fourth Proportional to 702,621, 1,054,022.22 and 323,450.28

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Solution

The fourth proportional to 702,621, 1,054,022.22 and 323,450.28 is: 485,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,621 : 1,054,022.22 = 323,450.28 : x
  2. Step 2: Convert to fraction form
    702,621/1,054,022.22 = 323,450.28/x
  3. Step 3: Cross multiply
    702,621x = 1,054,022.22 × 323,450.28
  4. Step 4: Simplify right side
    702,621x = 340,923,782,185.22
  5. Step 5: Solve for x
    x = 340,923,782,185.22/702,621
  6. Step 6: Final answer
    x = 485,217.18

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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.