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Finding the Fourth Proportional to 634.41, 873.59 and 632.25

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Solution

The fourth proportional to 634.41, 873.59 and 632.25 is: 870.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.41 : 873.59 = 632.25 : x
  2. Step 2: Convert to fraction form
    634.41/873.59 = 632.25/x
  3. Step 3: Cross multiply
    634.41x = 873.59 × 632.25
  4. Step 4: Simplify right side
    634.41x = 552,324.12
  5. Step 5: Solve for x
    x = 552,324.12/634.41
  6. Step 6: Final answer
    x = 870.61

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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.