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Finding the Fourth Proportional to 501,323.39, 691,821.57 and 271,885.74

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Solution

The fourth proportional to 501,323.39, 691,821.57 and 271,885.74 is: 375,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,323.39 : 691,821.57 = 271,885.74 : x
  2. Step 2: Convert to fraction form
    501,323.39/691,821.57 = 271,885.74/x
  3. Step 3: Cross multiply
    501,323.39x = 691,821.57 × 271,885.74
  4. Step 4: Simplify right side
    501,323.39x = 188,096,419,507.41
  5. Step 5: Solve for x
    x = 188,096,419,507.41/501,323.39
  6. Step 6: Final answer
    x = 375,199.77

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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.