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Finding the Fourth Proportional to 1,180.51, 1,771.07 and 632.54

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Solution

The fourth proportional to 1,180.51, 1,771.07 and 632.54 is: 948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.51 : 1,771.07 = 632.54 : x
  2. Step 2: Convert to fraction form
    1,180.51/1,771.07 = 632.54/x
  3. Step 3: Cross multiply
    1,180.51x = 1,771.07 × 632.54
  4. Step 4: Simplify right side
    1,180.51x = 1,120,273.88
  5. Step 5: Solve for x
    x = 1,120,273.88/1,180.51
  6. Step 6: Final answer
    x = 948.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.