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Finding the Fourth Proportional to 521,548.01, 719,654.05 and 303,792.54

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Solution

The fourth proportional to 521,548.01, 719,654.05 and 303,792.54 is: 419,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,548.01 : 719,654.05 = 303,792.54 : x
  2. Step 2: Convert to fraction form
    521,548.01/719,654.05 = 303,792.54/x
  3. Step 3: Cross multiply
    521,548.01x = 719,654.05 × 303,792.54
  4. Step 4: Simplify right side
    521,548.01x = 218,625,531,770.79
  5. Step 5: Solve for x
    x = 218,625,531,770.79/521,548.01
  6. Step 6: Final answer
    x = 419,185.82

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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.