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Finding the Fourth Proportional to 673, 927.78 and 476.96

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Solution

The fourth proportional to 673, 927.78 and 476.96 is: 657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    673 : 927.78 = 476.96 : x
  2. Step 2: Convert to fraction form
    673/927.78 = 476.96/x
  3. Step 3: Cross multiply
    673x = 927.78 × 476.96
  4. Step 4: Simplify right side
    673x = 442,513.95
  5. Step 5: Solve for x
    x = 442,513.95/673
  6. Step 6: Final answer
    x = 657.52

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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.