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Finding the Fourth Proportional to 486,791.93, 671,771.17 and 268,994.54

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Solution

The fourth proportional to 486,791.93, 671,771.17 and 268,994.54 is: 371,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,791.93 : 671,771.17 = 268,994.54 : x
  2. Step 2: Convert to fraction form
    486,791.93/671,771.17 = 268,994.54/x
  3. Step 3: Cross multiply
    486,791.93x = 671,771.17 × 268,994.54
  4. Step 4: Simplify right side
    486,791.93x = 180,702,776,859.41
  5. Step 5: Solve for x
    x = 180,702,776,859.41/486,791.93
  6. Step 6: Final answer
    x = 371,211.53

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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.