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Finding the Fourth Proportional to 887.26, 1,330.88 and 632.38

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Solution

The fourth proportional to 887.26, 1,330.88 and 632.38 is: 948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.26 : 1,330.88 = 632.38 : x
  2. Step 2: Convert to fraction form
    887.26/1,330.88 = 632.38/x
  3. Step 3: Cross multiply
    887.26x = 1,330.88 × 632.38
  4. Step 4: Simplify right side
    887.26x = 841,621.89
  5. Step 5: Solve for x
    x = 841,621.89/887.26
  6. Step 6: Final answer
    x = 948.56

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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.