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Finding the Fourth Proportional to 644,182.80, 965,107.80 and 550,870.80

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Solution

The fourth proportional to 644,182.80, 965,107.80 and 550,870.80 is: 825,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,182.80 : 965,107.80 = 550,870.80 : x
  2. Step 2: Convert to fraction form
    644,182.80/965,107.80 = 550,870.80/x
  3. Step 3: Cross multiply
    644,182.80x = 965,107.80 × 550,870.80
  4. Step 4: Simplify right side
    644,182.80x = 531,649,705,872.24
  5. Step 5: Solve for x
    x = 531,649,705,872.24/644,182.80
  6. Step 6: Final answer
    x = 825,308.76

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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.