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Finding the Fourth Proportional to 887.97, 1,225.27 and 495.07

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Solution

The fourth proportional to 887.97, 1,225.27 and 495.07 is: 683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.97 : 1,225.27 = 495.07 : x
  2. Step 2: Convert to fraction form
    887.97/1,225.27 = 495.07/x
  3. Step 3: Cross multiply
    887.97x = 1,225.27 × 495.07
  4. Step 4: Simplify right side
    887.97x = 606,594.42
  5. Step 5: Solve for x
    x = 606,594.42/887.97
  6. Step 6: Final answer
    x = 683.12

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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.