Home / 389,885.05-584,848.37-123,666.09

Finding the Fourth Proportional to 389,885.05, 584,848.37 and 123,666.09

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Solution

The fourth proportional to 389,885.05, 584,848.37 and 123,666.09 is: 185,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,885.05 : 584,848.37 = 123,666.09 : x
  2. Step 2: Convert to fraction form
    389,885.05/584,848.37 = 123,666.09/x
  3. Step 3: Cross multiply
    389,885.05x = 584,848.37 × 123,666.09
  4. Step 4: Simplify right side
    389,885.05x = 72,325,910,542.44
  5. Step 5: Solve for x
    x = 72,325,910,542.44/389,885.05
  6. Step 6: Final answer
    x = 185,505.73

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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.