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Finding the Fourth Proportional to 481,761.80, 721,865.10 and 303,950.60

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Solution

The fourth proportional to 481,761.80, 721,865.10 and 303,950.60 is: 455,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,761.80 : 721,865.10 = 303,950.60 : x
  2. Step 2: Convert to fraction form
    481,761.80/721,865.10 = 303,950.60/x
  3. Step 3: Cross multiply
    481,761.80x = 721,865.10 × 303,950.60
  4. Step 4: Simplify right side
    481,761.80x = 219,411,330,264.06
  5. Step 5: Solve for x
    x = 219,411,330,264.06/481,761.80
  6. Step 6: Final answer
    x = 455,435.30

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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.