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Finding the Fourth Proportional to 486,462.64, 671,311.91 and 271,606

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Solution

The fourth proportional to 486,462.64, 671,311.91 and 271,606 is: 374,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,462.64 : 671,311.91 = 271,606 : x
  2. Step 2: Convert to fraction form
    486,462.64/671,311.91 = 271,606/x
  3. Step 3: Cross multiply
    486,462.64x = 671,311.91 × 271,606
  4. Step 4: Simplify right side
    486,462.64x = 182,332,342,627.46
  5. Step 5: Solve for x
    x = 182,332,342,627.46/486,462.64
  6. Step 6: Final answer
    x = 374,812.63

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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.