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Finding the Fourth Proportional to 481,455.90, 721,777.43 and 303,570.79

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Solution

The fourth proportional to 481,455.90, 721,777.43 and 303,570.79 is: 455,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,455.90 : 721,777.43 = 303,570.79 : x
  2. Step 2: Convert to fraction form
    481,455.90/721,777.43 = 303,570.79/x
  3. Step 3: Cross multiply
    481,455.90x = 721,777.43 × 303,570.79
  4. Step 4: Simplify right side
    481,455.90x = 219,110,543,583.75
  5. Step 5: Solve for x
    x = 219,110,543,583.75/481,455.90
  6. Step 6: Final answer
    x = 455,099.92

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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.