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Finding the Fourth Proportional to 489,226.40, 733,839.60 and 320,827.40

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Solution

The fourth proportional to 489,226.40, 733,839.60 and 320,827.40 is: 481,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,226.40 : 733,839.60 = 320,827.40 : x
  2. Step 2: Convert to fraction form
    489,226.40/733,839.60 = 320,827.40/x
  3. Step 3: Cross multiply
    489,226.40x = 733,839.60 × 320,827.40
  4. Step 4: Simplify right side
    489,226.40x = 235,435,850,885.04
  5. Step 5: Solve for x
    x = 235,435,850,885.04/489,226.40
  6. Step 6: Final answer
    x = 481,241.10

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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.