Home / 643,877.44-965,987.92-223,152.96

Finding the Fourth Proportional to 643,877.44, 965,987.92 and 223,152.96

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Solution

The fourth proportional to 643,877.44, 965,987.92 and 223,152.96 is: 334,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,877.44 : 965,987.92 = 223,152.96 : x
  2. Step 2: Convert to fraction form
    643,877.44/965,987.92 = 223,152.96/x
  3. Step 3: Cross multiply
    643,877.44x = 965,987.92 × 223,152.96
  4. Step 4: Simplify right side
    643,877.44x = 215,563,063,672.24
  5. Step 5: Solve for x
    x = 215,563,063,672.24/643,877.44
  6. Step 6: Final answer
    x = 334,788.97

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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.