Home / 827,857.80-1,241,786.70-687,889.80

Finding the Fourth Proportional to 827,857.80, 1,241,786.70 and 687,889.80

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Solution

The fourth proportional to 827,857.80, 1,241,786.70 and 687,889.80 is: 1,031,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,857.80 : 1,241,786.70 = 687,889.80 : x
  2. Step 2: Convert to fraction form
    827,857.80/1,241,786.70 = 687,889.80/x
  3. Step 3: Cross multiply
    827,857.80x = 1,241,786.70 × 687,889.80
  4. Step 4: Simplify right side
    827,857.80x = 854,212,404,705.66
  5. Step 5: Solve for x
    x = 854,212,404,705.66/827,857.80
  6. Step 6: Final answer
    x = 1,031,834.70

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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.