Home / 400,721.64-552,998.73-219,450.30

Finding the Fourth Proportional to 400,721.64, 552,998.73 and 219,450.30

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Solution

The fourth proportional to 400,721.64, 552,998.73 and 219,450.30 is: 302,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,721.64 : 552,998.73 = 219,450.30 : x
  2. Step 2: Convert to fraction form
    400,721.64/552,998.73 = 219,450.30/x
  3. Step 3: Cross multiply
    400,721.64x = 552,998.73 × 219,450.30
  4. Step 4: Simplify right side
    400,721.64x = 121,355,737,198.12
  5. Step 5: Solve for x
    x = 121,355,737,198.12/400,721.64
  6. Step 6: Final answer
    x = 302,842.98

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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.