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Finding the Fourth Proportional to 492,100.20, 738,150.30 and 403,453.80

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Solution

The fourth proportional to 492,100.20, 738,150.30 and 403,453.80 is: 605,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,100.20 : 738,150.30 = 403,453.80 : x
  2. Step 2: Convert to fraction form
    492,100.20/738,150.30 = 403,453.80/x
  3. Step 3: Cross multiply
    492,100.20x = 738,150.30 × 403,453.80
  4. Step 4: Simplify right side
    492,100.20x = 297,809,543,506.14
  5. Step 5: Solve for x
    x = 297,809,543,506.14/492,100.20
  6. Step 6: Final answer
    x = 605,180.70

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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.