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Finding the Fourth Proportional to 481,907.80, 722,861.70 and 303,837.40

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Solution

The fourth proportional to 481,907.80, 722,861.70 and 303,837.40 is: 455,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,907.80 : 722,861.70 = 303,837.40 : x
  2. Step 2: Convert to fraction form
    481,907.80/722,861.70 = 303,837.40/x
  3. Step 3: Cross multiply
    481,907.80x = 722,861.70 × 303,837.40
  4. Step 4: Simplify right side
    481,907.80x = 219,632,419,487.58
  5. Step 5: Solve for x
    x = 219,632,419,487.58/481,907.80
  6. Step 6: Final answer
    x = 455,756.10

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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.