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Finding the Fourth Proportional to 488,906.88, 674,695.68 and 274,047.36

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Solution

The fourth proportional to 488,906.88, 674,695.68 and 274,047.36 is: 378,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,906.88 : 674,695.68 = 274,047.36 : x
  2. Step 2: Convert to fraction form
    488,906.88/674,695.68 = 274,047.36/x
  3. Step 3: Cross multiply
    488,906.88x = 674,695.68 × 274,047.36
  4. Step 4: Simplify right side
    488,906.88x = 184,898,569,907.41
  5. Step 5: Solve for x
    x = 184,898,569,907.41/488,906.88
  6. Step 6: Final answer
    x = 378,187.70

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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.