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Finding the Fourth Proportional to 396,054.80, 594,665.40 and 307,408.40

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Solution

The fourth proportional to 396,054.80, 594,665.40 and 307,408.40 is: 461,565.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,054.80 : 594,665.40 = 307,408.40 : x
  2. Step 2: Convert to fraction form
    396,054.80/594,665.40 = 307,408.40/x
  3. Step 3: Cross multiply
    396,054.80x = 594,665.40 × 307,408.40
  4. Step 4: Simplify right side
    396,054.80x = 182,805,139,149.36
  5. Step 5: Solve for x
    x = 182,805,139,149.36/396,054.80
  6. Step 6: Final answer
    x = 461,565.27

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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.