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Finding the Fourth Proportional to 629.76, 948.96 and 624.48

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Solution

The fourth proportional to 629.76, 948.96 and 624.48 is: 941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.76 : 948.96 = 624.48 : x
  2. Step 2: Convert to fraction form
    629.76/948.96 = 624.48/x
  3. Step 3: Cross multiply
    629.76x = 948.96 × 624.48
  4. Step 4: Simplify right side
    629.76x = 592,606.54
  5. Step 5: Solve for x
    x = 592,606.54/629.76
  6. Step 6: Final answer
    x = 941.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.