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Finding the Fourth Proportional to 503,480.48, 694,627.85 and 285,663.48

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Solution

The fourth proportional to 503,480.48, 694,627.85 and 285,663.48 is: 394,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,480.48 : 694,627.85 = 285,663.48 : x
  2. Step 2: Convert to fraction form
    503,480.48/694,627.85 = 285,663.48/x
  3. Step 3: Cross multiply
    503,480.48x = 694,627.85 × 285,663.48
  4. Step 4: Simplify right side
    503,480.48x = 198,429,807,507.60
  5. Step 5: Solve for x
    x = 198,429,807,507.60/503,480.48
  6. Step 6: Final answer
    x = 394,116.19

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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.