Home / 338,619.57-507,924.20-82,454.54

Finding the Fourth Proportional to 338,619.57, 507,924.20 and 82,454.54

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Solution

The fourth proportional to 338,619.57, 507,924.20 and 82,454.54 is: 123,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,619.57 : 507,924.20 = 82,454.54 : x
  2. Step 2: Convert to fraction form
    338,619.57/507,924.20 = 82,454.54/x
  3. Step 3: Cross multiply
    338,619.57x = 507,924.20 × 82,454.54
  4. Step 4: Simplify right side
    338,619.57x = 41,880,653,313.97
  5. Step 5: Solve for x
    x = 41,880,653,313.97/338,619.57
  6. Step 6: Final answer
    x = 123,680.55

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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.