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Finding the Fourth Proportional to 325,391.38, 448,808.62 and 298,620.34

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Solution

The fourth proportional to 325,391.38, 448,808.62 and 298,620.34 is: 411,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,391.38 : 448,808.62 = 298,620.34 : x
  2. Step 2: Convert to fraction form
    325,391.38/448,808.62 = 298,620.34/x
  3. Step 3: Cross multiply
    325,391.38x = 448,808.62 × 298,620.34
  4. Step 4: Simplify right side
    325,391.38x = 134,023,382,699.33
  5. Step 5: Solve for x
    x = 134,023,382,699.33/325,391.38
  6. Step 6: Final answer
    x = 411,883.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.