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Finding the Fourth Proportional to 492,086.20, 738,129.30 and 450,095.80

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Solution

The fourth proportional to 492,086.20, 738,129.30 and 450,095.80 is: 675,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,086.20 : 738,129.30 = 450,095.80 : x
  2. Step 2: Convert to fraction form
    492,086.20/738,129.30 = 450,095.80/x
  3. Step 3: Cross multiply
    492,086.20x = 738,129.30 × 450,095.80
  4. Step 4: Simplify right side
    492,086.20x = 332,228,897,786.94
  5. Step 5: Solve for x
    x = 332,228,897,786.94/492,086.20
  6. Step 6: Final answer
    x = 675,143.70

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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.