Home / 646,576.90-892,241.04-356,131.96

Finding the Fourth Proportional to 646,576.90, 892,241.04 and 356,131.96

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Solution

The fourth proportional to 646,576.90, 892,241.04 and 356,131.96 is: 491,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,576.90 : 892,241.04 = 356,131.96 : x
  2. Step 2: Convert to fraction form
    646,576.90/892,241.04 = 356,131.96/x
  3. Step 3: Cross multiply
    646,576.90x = 892,241.04 × 356,131.96
  4. Step 4: Simplify right side
    646,576.90x = 317,755,550,367.64
  5. Step 5: Solve for x
    x = 317,755,550,367.64/646,576.90
  6. Step 6: Final answer
    x = 491,442.78

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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.