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Finding the Fourth Proportional to 488,268.45, 673,512.30 and 322,696.15

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Solution

The fourth proportional to 488,268.45, 673,512.30 and 322,696.15 is: 445,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,268.45 : 673,512.30 = 322,696.15 : x
  2. Step 2: Convert to fraction form
    488,268.45/673,512.30 = 322,696.15/x
  3. Step 3: Cross multiply
    488,268.45x = 673,512.30 × 322,696.15
  4. Step 4: Simplify right side
    488,268.45x = 217,339,824,503.86
  5. Step 5: Solve for x
    x = 217,339,824,503.86/488,268.45
  6. Step 6: Final answer
    x = 445,123.63

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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.