Home / 503,402.28-694,538.70-285,575.04

Finding the Fourth Proportional to 503,402.28, 694,538.70 and 285,575.04

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Solution

The fourth proportional to 503,402.28, 694,538.70 and 285,575.04 is: 394,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,402.28 : 694,538.70 = 285,575.04 : x
  2. Step 2: Convert to fraction form
    503,402.28/694,538.70 = 285,575.04/x
  3. Step 3: Cross multiply
    503,402.28x = 694,538.70 × 285,575.04
  4. Step 4: Simplify right side
    503,402.28x = 198,342,917,034.05
  5. Step 5: Solve for x
    x = 198,342,917,034.05/503,402.28
  6. Step 6: Final answer
    x = 394,004.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.