Home / 644,101.80-964,986.30-550,789.80

Finding the Fourth Proportional to 644,101.80, 964,986.30 and 550,789.80

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Solution

The fourth proportional to 644,101.80, 964,986.30 and 550,789.80 is: 825,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,101.80 : 964,986.30 = 550,789.80 : x
  2. Step 2: Convert to fraction form
    644,101.80/964,986.30 = 550,789.80/x
  3. Step 3: Cross multiply
    644,101.80x = 964,986.30 × 550,789.80
  4. Step 4: Simplify right side
    644,101.80x = 531,504,611,179.74
  5. Step 5: Solve for x
    x = 531,504,611,179.74/644,101.80
  6. Step 6: Final answer
    x = 825,187.28

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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.