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Finding the Fourth Proportional to 488,871.84, 674,670 and 274,080.96

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Solution

The fourth proportional to 488,871.84, 674,670 and 274,080.96 is: 378,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,871.84 : 674,670 = 274,080.96 : x
  2. Step 2: Convert to fraction form
    488,871.84/674,670 = 274,080.96/x
  3. Step 3: Cross multiply
    488,871.84x = 674,670 × 274,080.96
  4. Step 4: Simplify right side
    488,871.84x = 184,914,201,283.20
  5. Step 5: Solve for x
    x = 184,914,201,283.20/488,871.84
  6. Step 6: Final answer
    x = 378,246.78

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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.