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Finding the Fourth Proportional to 647.59, 892.98 and 481.53

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Solution

The fourth proportional to 647.59, 892.98 and 481.53 is: 664.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.59 : 892.98 = 481.53 : x
  2. Step 2: Convert to fraction form
    647.59/892.98 = 481.53/x
  3. Step 3: Cross multiply
    647.59x = 892.98 × 481.53
  4. Step 4: Simplify right side
    647.59x = 429,996.66
  5. Step 5: Solve for x
    x = 429,996.66/647.59
  6. Step 6: Final answer
    x = 664.00

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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.