Home / 389,003.37-583,484.39-119,131.41

Finding the Fourth Proportional to 389,003.37, 583,484.39 and 119,131.41

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Solution

The fourth proportional to 389,003.37, 583,484.39 and 119,131.41 is: 178,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,003.37 : 583,484.39 = 119,131.41 : x
  2. Step 2: Convert to fraction form
    389,003.37/583,484.39 = 119,131.41/x
  3. Step 3: Cross multiply
    389,003.37x = 583,484.39 × 119,131.41
  4. Step 4: Simplify right side
    389,003.37x = 69,511,318,093.69
  5. Step 5: Solve for x
    x = 69,511,318,093.69/389,003.37
  6. Step 6: Final answer
    x = 178,690.79

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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.