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Finding the Fourth Proportional to 635,728.72, 952,659.96 and 319,750.96

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Solution

The fourth proportional to 635,728.72, 952,659.96 and 319,750.96 is: 479,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,728.72 : 952,659.96 = 319,750.96 : x
  2. Step 2: Convert to fraction form
    635,728.72/952,659.96 = 319,750.96/x
  3. Step 3: Cross multiply
    635,728.72x = 952,659.96 × 319,750.96
  4. Step 4: Simplify right side
    635,728.72x = 304,613,936,763.56
  5. Step 5: Solve for x
    x = 304,613,936,763.56/635,728.72
  6. Step 6: Final answer
    x = 479,157.11

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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.