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Finding the Fourth Proportional to 617,456.73, 851,967.96 and 345,471.86

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Solution

The fourth proportional to 617,456.73, 851,967.96 and 345,471.86 is: 476,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,456.73 : 851,967.96 = 345,471.86 : x
  2. Step 2: Convert to fraction form
    617,456.73/851,967.96 = 345,471.86/x
  3. Step 3: Cross multiply
    617,456.73x = 851,967.96 × 345,471.86
  4. Step 4: Simplify right side
    617,456.73x = 294,330,956,636.01
  5. Step 5: Solve for x
    x = 294,330,956,636.01/617,456.73
  6. Step 6: Final answer
    x = 476,682.72

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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.