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Finding the Fourth Proportional to 634.94, 945.32 and 625.84

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Solution

The fourth proportional to 634.94, 945.32 and 625.84 is: 931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.94 : 945.32 = 625.84 : x
  2. Step 2: Convert to fraction form
    634.94/945.32 = 625.84/x
  3. Step 3: Cross multiply
    634.94x = 945.32 × 625.84
  4. Step 4: Simplify right side
    634.94x = 591,619.07
  5. Step 5: Solve for x
    x = 591,619.07/634.94
  6. Step 6: Final answer
    x = 931.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.