Home / 638,379.48-957,274.82-188,939.64

Finding the Fourth Proportional to 638,379.48, 957,274.82 and 188,939.64

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Solution

The fourth proportional to 638,379.48, 957,274.82 and 188,939.64 is: 283,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,379.48 : 957,274.82 = 188,939.64 : x
  2. Step 2: Convert to fraction form
    638,379.48/957,274.82 = 188,939.64/x
  3. Step 3: Cross multiply
    638,379.48x = 957,274.82 × 188,939.64
  4. Step 4: Simplify right side
    638,379.48x = 180,867,159,871.87
  5. Step 5: Solve for x
    x = 180,867,159,871.87/638,379.48
  6. Step 6: Final answer
    x = 283,322.33

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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.