Home / 550,978.28-826,786.54-231,101.72

Finding the Fourth Proportional to 550,978.28, 826,786.54 and 231,101.72

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Solution

The fourth proportional to 550,978.28, 826,786.54 and 231,101.72 is: 346,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,978.28 : 826,786.54 = 231,101.72 : x
  2. Step 2: Convert to fraction form
    550,978.28/826,786.54 = 231,101.72/x
  3. Step 3: Cross multiply
    550,978.28x = 826,786.54 × 231,101.72
  4. Step 4: Simplify right side
    550,978.28x = 191,071,791,466.85
  5. Step 5: Solve for x
    x = 191,071,791,466.85/550,978.28
  6. Step 6: Final answer
    x = 346,786.43

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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.