Home / 389,954.01-584,951.78-123,735.36

Finding the Fourth Proportional to 389,954.01, 584,951.78 and 123,735.36

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Solution

The fourth proportional to 389,954.01, 584,951.78 and 123,735.36 is: 185,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,954.01 : 584,951.78 = 123,735.36 : x
  2. Step 2: Convert to fraction form
    389,954.01/584,951.78 = 123,735.36/x
  3. Step 3: Cross multiply
    389,954.01x = 584,951.78 × 123,735.36
  4. Step 4: Simplify right side
    389,954.01x = 72,379,219,080.94
  5. Step 5: Solve for x
    x = 72,379,219,080.94/389,954.01
  6. Step 6: Final answer
    x = 185,609.63

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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.