Home / 643,853.44-965,951.92-223,128.96

Finding the Fourth Proportional to 643,853.44, 965,951.92 and 223,128.96

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Solution

The fourth proportional to 643,853.44, 965,951.92 and 223,128.96 is: 334,752.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,853.44 : 965,951.92 = 223,128.96 : x
  2. Step 2: Convert to fraction form
    643,853.44/965,951.92 = 223,128.96/x
  3. Step 3: Cross multiply
    643,853.44x = 965,951.92 × 223,128.96
  4. Step 4: Simplify right side
    643,853.44x = 215,531,847,319.60
  5. Step 5: Solve for x
    x = 215,531,847,319.60/643,853.44
  6. Step 6: Final answer
    x = 334,752.96

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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.