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Finding the Fourth Proportional to 617,082.62, 851,652.90 and 345,165.62

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Solution

The fourth proportional to 617,082.62, 851,652.90 and 345,165.62 is: 476,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,082.62 : 851,652.90 = 345,165.62 : x
  2. Step 2: Convert to fraction form
    617,082.62/851,652.90 = 345,165.62/x
  3. Step 3: Cross multiply
    617,082.62x = 851,652.90 × 345,165.62
  4. Step 4: Simplify right side
    617,082.62x = 293,961,299,527.47
  5. Step 5: Solve for x
    x = 293,961,299,527.47/617,082.62
  6. Step 6: Final answer
    x = 476,372.68

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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.