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Finding the Fourth Proportional to 488,813.32, 674,588.82 and 274,022.38

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Solution

The fourth proportional to 488,813.32, 674,588.82 and 274,022.38 is: 378,165.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,813.32 : 674,588.82 = 274,022.38 : x
  2. Step 2: Convert to fraction form
    488,813.32/674,588.82 = 274,022.38/x
  3. Step 3: Cross multiply
    488,813.32x = 674,588.82 × 274,022.38
  4. Step 4: Simplify right side
    488,813.32x = 184,852,433,977.79
  5. Step 5: Solve for x
    x = 184,852,433,977.79/488,813.32
  6. Step 6: Final answer
    x = 378,165.71

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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.