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Finding the Fourth Proportional to 486,219.82, 671,017.02 and 271,401.70

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Solution

The fourth proportional to 486,219.82, 671,017.02 and 271,401.70 is: 374,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,219.82 : 671,017.02 = 271,401.70 : x
  2. Step 2: Convert to fraction form
    486,219.82/671,017.02 = 271,401.70/x
  3. Step 3: Cross multiply
    486,219.82x = 671,017.02 × 271,401.70
  4. Step 4: Simplify right side
    486,219.82x = 182,115,159,956.93
  5. Step 5: Solve for x
    x = 182,115,159,956.93/486,219.82
  6. Step 6: Final answer
    x = 374,553.14

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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.