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Finding the Fourth Proportional to 488,877.72, 674,670.78 and 274,016.22

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Solution

The fourth proportional to 488,877.72, 674,670.78 and 274,016.22 is: 378,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,877.72 : 674,670.78 = 274,016.22 : x
  2. Step 2: Convert to fraction form
    488,877.72/674,670.78 = 274,016.22/x
  3. Step 3: Cross multiply
    488,877.72x = 674,670.78 × 274,016.22
  4. Step 4: Simplify right side
    488,877.72x = 184,870,736,880.05
  5. Step 5: Solve for x
    x = 184,870,736,880.05/488,877.72
  6. Step 6: Final answer
    x = 378,153.33

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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.