Home / 658,434.30-987,456.60-279,350.22

Finding the Fourth Proportional to 658,434.30, 987,456.60 and 279,350.22

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Solution

The fourth proportional to 658,434.30, 987,456.60 and 279,350.22 is: 418,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,434.30 : 987,456.60 = 279,350.22 : x
  2. Step 2: Convert to fraction form
    658,434.30/987,456.60 = 279,350.22/x
  3. Step 3: Cross multiply
    658,434.30x = 987,456.60 × 279,350.22
  4. Step 4: Simplify right side
    658,434.30x = 275,846,218,450.45
  5. Step 5: Solve for x
    x = 275,846,218,450.45/658,434.30
  6. Step 6: Final answer
    x = 418,942.66

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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.