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Finding the Fourth Proportional to 887.02, 1,329.31 and 453.27

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Solution

The fourth proportional to 887.02, 1,329.31 and 453.27 is: 679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.02 : 1,329.31 = 453.27 : x
  2. Step 2: Convert to fraction form
    887.02/1,329.31 = 453.27/x
  3. Step 3: Cross multiply
    887.02x = 1,329.31 × 453.27
  4. Step 4: Simplify right side
    887.02x = 602,536.34
  5. Step 5: Solve for x
    x = 602,536.34/887.02
  6. Step 6: Final answer
    x = 679.28

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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.