Home / 767,628.80-1,149,974.40-412,524.80

Finding the Fourth Proportional to 767,628.80, 1,149,974.40 and 412,524.80

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Solution

The fourth proportional to 767,628.80, 1,149,974.40 and 412,524.80 is: 617,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,628.80 : 1,149,974.40 = 412,524.80 : x
  2. Step 2: Convert to fraction form
    767,628.80/1,149,974.40 = 412,524.80/x
  3. Step 3: Cross multiply
    767,628.80x = 1,149,974.40 × 412,524.80
  4. Step 4: Simplify right side
    767,628.80x = 474,392,959,365.12
  5. Step 5: Solve for x
    x = 474,392,959,365.12/767,628.80
  6. Step 6: Final answer
    x = 617,997.86

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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.