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Finding the Fourth Proportional to 617,325.56, 851,942.26 and 345,377.17

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Solution

The fourth proportional to 617,325.56, 851,942.26 and 345,377.17 is: 476,638.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,325.56 : 851,942.26 = 345,377.17 : x
  2. Step 2: Convert to fraction form
    617,325.56/851,942.26 = 345,377.17/x
  3. Step 3: Cross multiply
    617,325.56x = 851,942.26 × 345,377.17
  4. Step 4: Simplify right side
    617,325.56x = 294,241,400,775.61
  5. Step 5: Solve for x
    x = 294,241,400,775.61/617,325.56
  6. Step 6: Final answer
    x = 476,638.94

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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.