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Finding the Fourth Proportional to 888.25, 1,225.76 and 495.27

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Solution

The fourth proportional to 888.25, 1,225.76 and 495.27 is: 683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.25 : 1,225.76 = 495.27 : x
  2. Step 2: Convert to fraction form
    888.25/1,225.76 = 495.27/x
  3. Step 3: Cross multiply
    888.25x = 1,225.76 × 495.27
  4. Step 4: Simplify right side
    888.25x = 607,076.61
  5. Step 5: Solve for x
    x = 607,076.61/888.25
  6. Step 6: Final answer
    x = 683.45

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1.5x scale

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.