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Finding the Fourth Proportional to 519,049.60, 777,652.80 and 321,827.20

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Solution

The fourth proportional to 519,049.60, 777,652.80 and 321,827.20 is: 482,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,049.60 : 777,652.80 = 321,827.20 : x
  2. Step 2: Convert to fraction form
    519,049.60/777,652.80 = 321,827.20/x
  3. Step 3: Cross multiply
    519,049.60x = 777,652.80 × 321,827.20
  4. Step 4: Simplify right side
    519,049.60x = 250,269,823,196.16
  5. Step 5: Solve for x
    x = 250,269,823,196.16/519,049.60
  6. Step 6: Final answer
    x = 482,169.38

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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.