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Finding the Fourth Proportional to 386,408.10, 579,517.64 and 301,958.80

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Solution

The fourth proportional to 386,408.10, 579,517.64 and 301,958.80 is: 452,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,408.10 : 579,517.64 = 301,958.80 : x
  2. Step 2: Convert to fraction form
    386,408.10/579,517.64 = 301,958.80/x
  3. Step 3: Cross multiply
    386,408.10x = 579,517.64 × 301,958.80
  4. Step 4: Simplify right side
    386,408.10x = 174,990,450,141.94
  5. Step 5: Solve for x
    x = 174,990,450,141.94/386,408.10
  6. Step 6: Final answer
    x = 452,864.35

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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.