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Finding the Fourth Proportional to 609,572.40, 913,915.62 and 254,687.91

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Solution

The fourth proportional to 609,572.40, 913,915.62 and 254,687.91 is: 381,846.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,572.40 : 913,915.62 = 254,687.91 : x
  2. Step 2: Convert to fraction form
    609,572.40/913,915.62 = 254,687.91/x
  3. Step 3: Cross multiply
    609,572.40x = 913,915.62 × 254,687.91
  4. Step 4: Simplify right side
    609,572.40x = 232,763,259,174.15
  5. Step 5: Solve for x
    x = 232,763,259,174.15/609,572.40
  6. Step 6: Final answer
    x = 381,846.78

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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.