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Finding the Fourth Proportional to 617,087.37, 851,659.46 and 345,170.37

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Solution

The fourth proportional to 617,087.37, 851,659.46 and 345,170.37 is: 476,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,087.37 : 851,659.46 = 345,170.37 : x
  2. Step 2: Convert to fraction form
    617,087.37/851,659.46 = 345,170.37/x
  3. Step 3: Cross multiply
    617,087.37x = 851,659.46 × 345,170.37
  4. Step 4: Simplify right side
    617,087.37x = 293,967,609,196.35
  5. Step 5: Solve for x
    x = 293,967,609,196.35/617,087.37
  6. Step 6: Final answer
    x = 476,379.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.