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Finding the Fourth Proportional to 675.03, 925.74 and 646.97

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Solution

The fourth proportional to 675.03, 925.74 and 646.97 is: 887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.03 : 925.74 = 646.97 : x
  2. Step 2: Convert to fraction form
    675.03/925.74 = 646.97/x
  3. Step 3: Cross multiply
    675.03x = 925.74 × 646.97
  4. Step 4: Simplify right side
    675.03x = 598,921.38
  5. Step 5: Solve for x
    x = 598,921.38/675.03
  6. Step 6: Final answer
    x = 887.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.