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Finding the Fourth Proportional to 481,890.90, 722,145.15 and 354,537.30

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Solution

The fourth proportional to 481,890.90, 722,145.15 and 354,537.30 is: 531,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,890.90 : 722,145.15 = 354,537.30 : x
  2. Step 2: Convert to fraction form
    481,890.90/722,145.15 = 354,537.30/x
  3. Step 3: Cross multiply
    481,890.90x = 722,145.15 × 354,537.30
  4. Step 4: Simplify right side
    481,890.90x = 256,027,391,689.10
  5. Step 5: Solve for x
    x = 256,027,391,689.10/481,890.90
  6. Step 6: Final answer
    x = 531,297.42

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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.