Home / 338,618.07-507,921.94-82,453.04

Finding the Fourth Proportional to 338,618.07, 507,921.94 and 82,453.04

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Solution

The fourth proportional to 338,618.07, 507,921.94 and 82,453.04 is: 123,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,618.07 : 507,921.94 = 82,453.04 : x
  2. Step 2: Convert to fraction form
    338,618.07/507,921.94 = 82,453.04/x
  3. Step 3: Cross multiply
    338,618.07x = 507,921.94 × 82,453.04
  4. Step 4: Simplify right side
    338,618.07x = 41,879,707,503.86
  5. Step 5: Solve for x
    x = 41,879,707,503.86/338,618.07
  6. Step 6: Final answer
    x = 123,678.30

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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.