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Finding the Fourth Proportional to 486,004.56, 670,686.71 and 271,144.70

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Solution

The fourth proportional to 486,004.56, 670,686.71 and 271,144.70 is: 374,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,004.56 : 670,686.71 = 271,144.70 : x
  2. Step 2: Convert to fraction form
    486,004.56/670,686.71 = 271,144.70/x
  3. Step 3: Cross multiply
    486,004.56x = 670,686.71 × 271,144.70
  4. Step 4: Simplify right side
    486,004.56x = 181,853,146,776.94
  5. Step 5: Solve for x
    x = 181,853,146,776.94/486,004.56
  6. Step 6: Final answer
    x = 374,179.92

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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.