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Finding the Fourth Proportional to 489,135.20, 733,338.30 and 252,647.60

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Solution

The fourth proportional to 489,135.20, 733,338.30 and 252,647.60 is: 378,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,135.20 : 733,338.30 = 252,647.60 : x
  2. Step 2: Convert to fraction form
    489,135.20/733,338.30 = 252,647.60/x
  3. Step 3: Cross multiply
    489,135.20x = 733,338.30 × 252,647.60
  4. Step 4: Simplify right side
    489,135.20x = 185,276,161,483.08
  5. Step 5: Solve for x
    x = 185,276,161,483.08/489,135.20
  6. Step 6: Final answer
    x = 378,783.13

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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.