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Finding the Fourth Proportional to 517,682.52, 775,884.42 and 218,058.12

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Solution

The fourth proportional to 517,682.52, 775,884.42 and 218,058.12 is: 326,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,682.52 : 775,884.42 = 218,058.12 : x
  2. Step 2: Convert to fraction form
    517,682.52/775,884.42 = 218,058.12/x
  3. Step 3: Cross multiply
    517,682.52x = 775,884.42 × 218,058.12
  4. Step 4: Simplify right side
    517,682.52x = 169,187,897,962.49
  5. Step 5: Solve for x
    x = 169,187,897,962.49/517,682.52
  6. Step 6: Final answer
    x = 326,817.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.