Home / 689,654.66-1,034,564.94-228,048.21

Finding the Fourth Proportional to 689,654.66, 1,034,564.94 and 228,048.21

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Solution

The fourth proportional to 689,654.66, 1,034,564.94 and 228,048.21 is: 342,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,654.66 : 1,034,564.94 = 228,048.21 : x
  2. Step 2: Convert to fraction form
    689,654.66/1,034,564.94 = 228,048.21/x
  3. Step 3: Cross multiply
    689,654.66x = 1,034,564.94 × 228,048.21
  4. Step 4: Simplify right side
    689,654.66x = 235,930,682,695.76
  5. Step 5: Solve for x
    x = 235,930,682,695.76/689,654.66
  6. Step 6: Final answer
    x = 342,099.75

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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.