Home / 816,789.45-1,127,004.26-477,192.09

Finding the Fourth Proportional to 816,789.45, 1,127,004.26 and 477,192.09

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Solution

The fourth proportional to 816,789.45, 1,127,004.26 and 477,192.09 is: 658,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,789.45 : 1,127,004.26 = 477,192.09 : x
  2. Step 2: Convert to fraction form
    816,789.45/1,127,004.26 = 477,192.09/x
  3. Step 3: Cross multiply
    816,789.45x = 1,127,004.26 × 477,192.09
  4. Step 4: Simplify right side
    816,789.45x = 537,797,515,882.34
  5. Step 5: Solve for x
    x = 537,797,515,882.34/816,789.45
  6. Step 6: Final answer
    x = 658,428.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.