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Finding the Fourth Proportional to 503,741.12, 755,610.94 and 345,489.80

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Solution

The fourth proportional to 503,741.12, 755,610.94 and 345,489.80 is: 518,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,741.12 : 755,610.94 = 345,489.80 : x
  2. Step 2: Convert to fraction form
    503,741.12/755,610.94 = 345,489.80/x
  3. Step 3: Cross multiply
    503,741.12x = 755,610.94 × 345,489.80
  4. Step 4: Simplify right side
    503,741.12x = 261,055,872,538.41
  5. Step 5: Solve for x
    x = 261,055,872,538.41/503,741.12
  6. Step 6: Final answer
    x = 518,234.19

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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.