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Finding the Fourth Proportional to 561,873.67, 775,436.31 and 320,234.08

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Solution

The fourth proportional to 561,873.67, 775,436.31 and 320,234.08 is: 441,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,873.67 : 775,436.31 = 320,234.08 : x
  2. Step 2: Convert to fraction form
    561,873.67/775,436.31 = 320,234.08/x
  3. Step 3: Cross multiply
    561,873.67x = 775,436.31 × 320,234.08
  4. Step 4: Simplify right side
    561,873.67x = 248,321,133,331.45
  5. Step 5: Solve for x
    x = 248,321,133,331.45/561,873.67
  6. Step 6: Final answer
    x = 441,951.90

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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.