Home / 550,978.38-826,090.26-280,583.11

Finding the Fourth Proportional to 550,978.38, 826,090.26 and 280,583.11

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Solution

The fourth proportional to 550,978.38, 826,090.26 and 280,583.11 is: 420,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,978.38 : 826,090.26 = 280,583.11 : x
  2. Step 2: Convert to fraction form
    550,978.38/826,090.26 = 280,583.11/x
  3. Step 3: Cross multiply
    550,978.38x = 826,090.26 × 280,583.11
  4. Step 4: Simplify right side
    550,978.38x = 231,786,976,376.31
  5. Step 5: Solve for x
    x = 231,786,976,376.31/550,978.38
  6. Step 6: Final answer
    x = 420,682.53

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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.